Journal of Human Evolution2004). The analysis of the Eshkaft-e Gavi faunal assemblage resulted in...

12
Paleolithic hominin remains from Eshkaft-e Gavi (southern Zagros Mountains, Iran): description, affinities, and evidence for butchery Jeremiah E. Scott * , Curtis W. Marean School of Human Evolution and Social Change, Institute of Human Origins, Arizona State University, Tempe, AZ 85287-4101, USA article info Article history: Received 19 July 2008 Accepted 25 May 2009 Keywords: Cannibalism Epi-Paleolithic Modern humans Upper Paleolithic abstract Eshkaft-e Gavi is a cave located in the southern Zagros Mountains of Iran and is one of the few archaeological sites in the region to preserve both Middle Paleolithic and Upper Paleolithic occupations. Excavation of the site in the 1970s yielded an assemblage of lithic and faunal remains, including ten hominin specimens: a mandibular molar, four cranial fragments, a clavicular diaphysis, the proximal half of a metacarpal, a fragment of os coxa, the proximal diaphysis of a juvenile femur, and a patella. The bones derive from a minimum of four individuals, including two juveniles. Although many of these remains could be Epi-Paleolithic in age, one of the juvenile specimensdthe mandibular molardoccurs at the base of the cave’s Upper Paleolithic sequence. The remains are very fragmentary, but those that preserve diagnostic morphology indicate that they represent modern humans. The molar is taxonomi- cally diagnostic, thus confirming the association of the Aurignacian-like Baradostian Industry with modern humans. Four of the specimensda piece of frontal bone, the clavicle, the juvenile femur, and the patelladdisplay clear evidence for intentional butchery in the form of stone-tool cutmarks. These cut- marked specimens, along with a fragment of parietal bone, are also burned. Although this evidence is consistent with cannibalism, the small sample makes it difficult to say whether or not the individuals represented by the hominin remains were butchered and cooked for consumption. Nevertheless, the cutmarked Eshkaft-e Gavi specimens add to a growing sample of hominin remains extending back into the Plio-Pleistocene that display evidence of intentional defleshing. Ó 2009 Elsevier Ltd. All rights reserved. Introduction The Zagros Mountains of Iran and Iraq were the focus of intensive archaeological research in the middle twentieth century (Garrod, 1930; Coon, 1951; Braidwood and Howe, 1960; Braidwood et al., 1961; Young and Smith, 1966; Hole and Flannery, 1967; Solecki, 1963, 1971; Piperno, 1972, 1974; Rosenberg, 1985), after which political events in Iran and instability in the Iraqi Zagros curtailed research by scientists from the United States and western Europe. Field research is now once again commencing (Roustaei et al., 2002; Heydari, 2007). While much of the initial effort targeted the tran- sition to food production, Paleolithic studies benefited enormously. The highly dissected limestones of the Zagros (Oberlander, 1965) are riddled with caves and rockshelters, many of which were discovered to be rich Paleolithic sites. The result is that these projects produced a large sample of Paleolithic material from numerous sites. The character of the lithic sequence of the Zagros Mountains is now reasonably well known based on systematic descriptions of the materials from Warwasi and Bisitun (Dibble, 1984; Dibble and Holdaway, 1990, 1993; Olszewski, 1993a,b; Olszewski and Dibble, 1994), Kobeh (Lindly, 2005), and Kunji (Speth, 1971; Baumler and Speth, 1993), but it is not well dated. The Middle Paleolithic in the Zagros is typically classified as the Zagros Mousterian, and to date, there is no dramatic variation found within it that justifies any formal divisions. All radiocarbon dates for the Zagros Mousterian have so far been infinite dates, and thus it is likely that the Zagros Mousterian is older than 35 ka. The succeeding Upper Paleolithic in the Zagros is represented by what has been traditionally called the Baradostian. Given its similarities with Aurignacian assemblages, Olszewski and Dibble (1994) proposed that the Baradostian be renamed the Zagros Aurignacian. The only reasonably complete hominin remains found in asso- ciation with the Zagros Mousterian are the Neandertals at Shanidar in Iraq (Trinkaus, 1983). Although hominin fragments were said to have been found at the Iranian Middle Paleolithic sites of Bisitun and Tamtama (Coon, 1951), only the Bisitun radius is hominin, most likely representing a Neandertal (Trinkaus, 2006; Trinkaus and * Corresponding author. E-mail addresses: [email protected] (J.E. Scott), [email protected] (C.W. Marean). Contents lists available at ScienceDirect Journal of Human Evolution journal homepage: www.elsevier.com/locate/jhevol 0047-2484/$ – see front matter Ó 2009 Elsevier Ltd. All rights reserved. doi:10.1016/j.jhevol.2009.05.012 Journal of Human Evolution 57 (2009) 248–259

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Journal of Human Evolution 57 (2009) 248–259

Contents lists avai

Journal of Human Evolution

journal homepage: www.elsevier .com/locate/ jhevol

Paleolithic hominin remains from Eshkaft-e Gavi (southern Zagros Mountains,Iran): description, affinities, and evidence for butchery

Jeremiah E. Scott*, Curtis W. MareanSchool of Human Evolution and Social Change, Institute of Human Origins, Arizona State University, Tempe, AZ 85287-4101, USA

a r t i c l e i n f o

Article history:Received 19 July 2008Accepted 25 May 2009

Keywords:CannibalismEpi-PaleolithicModern humansUpper Paleolithic

* Corresponding author.E-mail addresses: [email protected] (J.E. S

(C.W. Marean).

0047-2484/$ – see front matter � 2009 Elsevier Ltd.doi:10.1016/j.jhevol.2009.05.012

a b s t r a c t

Eshkaft-e Gavi is a cave located in the southern Zagros Mountains of Iran and is one of the fewarchaeological sites in the region to preserve both Middle Paleolithic and Upper Paleolithic occupations.Excavation of the site in the 1970s yielded an assemblage of lithic and faunal remains, including tenhominin specimens: a mandibular molar, four cranial fragments, a clavicular diaphysis, the proximal halfof a metacarpal, a fragment of os coxa, the proximal diaphysis of a juvenile femur, and a patella. Thebones derive from a minimum of four individuals, including two juveniles. Although many of theseremains could be Epi-Paleolithic in age, one of the juvenile specimensdthe mandibular molardoccurs atthe base of the cave’s Upper Paleolithic sequence. The remains are very fragmentary, but those thatpreserve diagnostic morphology indicate that they represent modern humans. The molar is taxonomi-cally diagnostic, thus confirming the association of the Aurignacian-like Baradostian Industry withmodern humans. Four of the specimensda piece of frontal bone, the clavicle, the juvenile femur, and thepatelladdisplay clear evidence for intentional butchery in the form of stone-tool cutmarks. These cut-marked specimens, along with a fragment of parietal bone, are also burned. Although this evidence isconsistent with cannibalism, the small sample makes it difficult to say whether or not the individualsrepresented by the hominin remains were butchered and cooked for consumption. Nevertheless, thecutmarked Eshkaft-e Gavi specimens add to a growing sample of hominin remains extending back intothe Plio-Pleistocene that display evidence of intentional defleshing.

� 2009 Elsevier Ltd. All rights reserved.

Introduction

The Zagros Mountains of Iran and Iraq were the focus of intensivearchaeological research in the middle twentieth century (Garrod,1930; Coon, 1951; Braidwood and Howe, 1960; Braidwood et al.,1961; Young and Smith, 1966; Hole and Flannery, 1967; Solecki,1963, 1971; Piperno, 1972, 1974; Rosenberg, 1985), after whichpolitical events in Iran and instability in the Iraqi Zagros curtailedresearch by scientists from the United States and western Europe.Field research is now once again commencing (Roustaei et al., 2002;Heydari, 2007). While much of the initial effort targeted the tran-sition to food production, Paleolithic studies benefited enormously.The highly dissected limestones of the Zagros (Oberlander, 1965) areriddled with caves and rockshelters, many of which were discoveredto be rich Paleolithic sites. The result is that these projects produceda large sample of Paleolithic material from numerous sites.

cott), [email protected]

All rights reserved.

The character of the lithic sequence of the Zagros Mountains isnow reasonably well known based on systematic descriptions of thematerials from Warwasi and Bisitun (Dibble, 1984; Dibble andHoldaway, 1990, 1993; Olszewski, 1993a,b; Olszewski and Dibble,1994), Kobeh (Lindly, 2005), and Kunji (Speth, 1971; Baumler andSpeth, 1993), but it is not well dated. The Middle Paleolithic in theZagros is typically classified as the Zagros Mousterian, and to date,there is no dramatic variation found within it that justifies anyformal divisions. All radiocarbon dates for the Zagros Mousterianhave so far been infinite dates, and thus it is likely that the ZagrosMousterian is older than 35 ka. The succeeding Upper Paleolithic inthe Zagros is represented by what has been traditionally called theBaradostian. Given its similarities with Aurignacian assemblages,Olszewski and Dibble (1994) proposed that the Baradostian berenamed the Zagros Aurignacian.

The only reasonably complete hominin remains found in asso-ciation with the Zagros Mousterian are the Neandertals at Shanidarin Iraq (Trinkaus, 1983). Although hominin fragments were said tohave been found at the Iranian Middle Paleolithic sites of Bisitunand Tamtama (Coon, 1951), only the Bisitun radius is hominin, mostlikely representing a Neandertal (Trinkaus, 2006; Trinkaus and

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Biglari, 2006). Upper Paleolithic human remains are more rare inthis region. Hole and Flannery (1967) mentioned human remainsfrom Gar Arjeneh, but these are undescribed, and Trinkaus et al.(2008) recently reported the recovery of an Upper Paleolithichuman premolar at Wezmeh Cave, Iran. Here we describe tenUpper Paleolithic and Epi-Paleolithic hominin remains from the siteof Eshkaft-e Gavi, Iran. In 1991, CWM initiated a study of severalZagros Paleolithic faunal assemblages, including the sites of Bisitun,Eshkaft-e Gavi, Kobeh, Kunji, and Tamtama (Marean, 1998; Mareanand Kim, 1998; Marean and Cleghorn, 2003; Cleghorn and Marean,2004). The analysis of the Eshkaft-e Gavi faunal assemblageresulted in the rediscovery of most of the hominin remainsdescribed here, the discovery of several new specimens, and theobservation of evidence for butchery on some of those remains.

Background to the site and excavations

Eshkaft-e Gavi is a large cave on the Marv Dasht plain on thelower Kur River Valley, about 14 km southwest of Persepolis,southernmost Zagros (29 52 19.49 N, 52 44 53.85 E) (Fig. 1). It isapproximately 20 m above the plain and faces northeast, and theKur River flows just 750 m to the northeast. The site was discoveredby W. Sumner in 1969 during a survey, and M. Rosenberg investi-gated it in 1978 from Sumner’s lead. He found that substantialdisturbance had occurred from mechanical excavation of the talusslope and partial collapse of the roof from blasting. Fortunately, theinterior cave preserved an intact deposit, and Rosenberg initiatedexcavations for two weeks in July of 1978 (Rosenberg, 1985) as partof the Malyan Project, directed by W. Sumner and R. Dyson. Ourdescription of the excavations and our drawings of the figures andstratigraphy are from Rosenberg (1985) and unpublished notesmade available to us by Rosenberg.

All of the sediments were sieved, and all of the sieved materialwas retained. Recovery appears to have been excellent, as there isa sample of several thousand small animals (micromammals,amphibians, reptiles, and birds) currently under study. A histogram(Fig. 2) of the large-animal faunal fragments shows that even verysmall specimens (less than 2 cm in size) were recovered and thatthe distribution is strongly skewed to small fragments. This pattern

E

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KobehBisitun

Kal-i DaoudHarsin

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Hunter's Cave

Kunji, Gar Arjeneh, Ghamari

48

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Figure 1. Map of Iran showing some of the major Paleolithic sites, inclu

shows that all but the tiniest fragments below 1 cm were capturedby the sieving operation, and thus the sample is not strongly biasedto larger fragments and is unlikely to be missing identifiable frag-ments through selective retention (Marean et al., 2004).

The cave has a rough figure-eight shape, with each section of theeight being about 15 m� 7 m (Fig. 3). Roof collapse from blasting inthe roof rock occurred at the opening of the cave and in the middle ofcave near the junction of the two chambers, leaving piles of rubble inboth places. Excavations were placed to avoid this rubble and anydisturbance resulting from modern activities, as well as to sampleboth the front and rear chambers. The rear test excavation (Opera-tion A, including Squares G, M, and N) was 3 m2 and was excavated toa depth of 1.5 m. The front test excavation (called Operation B,including Squares C and D) was a 2 m2 excavation that reacheda depth of 2 m. Excavations were carried out within 10-cm arbitrarylevels within natural stratigraphy. The excavators used a lotnumbering system in which the smallest individual unit of excava-tion, usually a square/10-cm-level combination, was assigneda unique ascending lot number, with each operation having its ownset of numbers. The associations of the lots to the strata are indicatedin Figs. 4 and 5 with shading and connecting lines.

A schematic of the sequence in Operation A was reconstructedfrom the excavation notes and information provided by Rosenberg(Fig. 4). The excavators noted that the stratigraphy in Operation Awas not always clear, and it was particularly challenging in the lowerpart of the sequence where light was very poor and the sedimentswere rocky and complex. Overall, Operation A had more dramaticsigns of disturbance than Operation B, most of it being concentratednear the top of the sequence, but with the lower part likely havingsome ancient rodent burrowing. Starting at the bottom, the depositshave high quantities of limestone rock fall, some Middle Paleolithicartifacts, and fossil bone. The latter deposits are overlain by hard,yellow clay that is cross-cut with possible rodent burrows that occurfrom roughly 120 cm to 80 cm below datum. Next is a concentrationof archaeological finds, including lithic artifacts and fauna. The lithicartifacts are Upper Paleolithic in form, and probably Baradostian inaffinity. This is followed by a rocky, orange sediment (described as‘‘soil’’ by Rosenberg), and then finally, at the top, an organic sedi-ment with significant amounts of dung and few archaeological finds.

CAVE SITES

OPEN AIR SITES

shkaft-i-Gavi

Khunik Cave

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Jahrom

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ding those discussed in the text. Latitude and longitude are shown.

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Figure 2. Histogram of specimen length for the Eshkaft-e Gavi large-mammal faunalassemblage (does not include micromammals, amphibians, birds, and reptiles).

J.E. Scott, C.W. Marean / Journal of Human Evolution 57 (2009) 248–259250

Operation B has a much cleaner sequence with few signs ofdisturbance (a schematic of this sequence is given in Fig. 5). Thelowest deposits are an organic, orange sediment with several lensescontaining relatively high concentrations of charcoal flecks. Thelithic artifacts are Middle Paleolithic and bone is well preserved. Thebottom of the deposit was not reached, and it is likely that the MiddlePaleolithic deposits penetrate much deeper. Above, the Mousterianarchaeological finds become less abundant, and then, at approxi-mately 150 cm below datum, lithic and faunal densities increase andthere is a clear transition to the Upper Paleolithic Baradostian by125 cm below datum. Six 14C dates clustered between 90 cm and125 cm of the deposit range from 18,000 to>28,000 yrs BP; they donot occur in stratigraphic order (Rosenberg, 1985). The top 15 cm of

Figure 3. Plan and cross section of Eshkaft-e Gavi. The heavy dotted lines adjacent to th

sediments resemble those in Operation A and are rich in organics,recent pottery, and ground stone.

We attempted to date unidentifiable shaft fragments with radio-carbon dating, but in all instances, these attempts were unsuccessfuldue to a lack of collagen. This failure is unfortunate because this site isone of the few in the Zagros that includes both Middle Paleolithic andUpper Paleolithic assemblages. It is important to note that thestratigraphy is rather complicated, and there are several forms ofevidence that suggest disturbance from either animals or people. Thelack of stratigraphic order to the six radiocarbon dates reported byRosenberg (1985) may result from a combination of being near thelimits of radiocarbon dating and bioturbation.

The hominin remains

The Eshkaft-e Gavi hominin sample consists of ten craniodentaland postcranial specimens (Table 1). Nine of these specimens wererecovered from the uppermost layers of Operation A, Square G (Lots11, 14, and 19; see Fig. 4). The other specimen, a mandibular molarcrown, was recovered from Operation B, Square D, between 100 cmand 125 cm below datum (Lot 21; Fig. 5). The specimens fromOperation A almost certainly represent modern humansdthesespecimens are stratified above Rosenberg’s (1985) 14C dates andcould therefore be quite young, perhaps Epi-Paleolithic in age. Onthe other hand, the molar crown occurs at the base of the UpperPaleolithic sequence within the carbon-dated sediments. EarlyUpper Paleolithic assemblages (as opposed to the initial UpperPaleolithic ‘‘transitional’’ industries) are generally attributed tomodern humans (reviewed in Churchill and Smith [2000]), andalthough the strength of the association in Europe has been ques-tioned (e.g., Conard et al., 2004), a recent study conducted by Baileyet al. (2009) has affirmed this connection. Thus, the Baradostian’ssimilarity to the Aurignacian (Olszewski and Dibble, 1994) suggeststhat human remains associated with this industry will beanatomically modern.

e squares indicate the location of the section drawings illustrated in Figs. 4 and 5.

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layers with possible intrusive artifactsfrom modern pit

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Figure 4. Schematic representation of the sequence in Operation A, as reconstructed from the excavation notes and information provided by M. Rosenberg. Squares G (MDC-AG), M(MDC-AM), and N (MDC-AN) are shown. The shading indicates major stratigraphic aggregates of arbitrary levels, and the numbers within these are the lot numbers of individuallyexcavated arbitrary levels. See text for further details.

J.E. Scott, C.W. Marean / Journal of Human Evolution 57 (2009) 248–259 251

Nevertheless, because Neandertal remains have been found inassociation with industries that contain Upper Paleolithic–likeelements (e.g., Leveque and Vandermeersch, 1980; Hublin et al.,1996; Bailey and Hublin, 2006), we evaluated the morphology ofthe molar crown with the goal of determining if it can beunequivocally assigned to modern humans and to test thehypothesis that the Baradostian does signal the presence ofmodern humans. The Zagros Mountains could represent a barrierto early modern humans exiting Africa, and their rugged

organic sed

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Figure 5. Schematic representation of the sequence in Operation B, as reconstructed from thD (MDC-BD) are shown. The shading indicates major stratigraphic aggregates of arbitraryarbitrary levels. See text for further details.

mountainous character holds out the possibility that they couldhave harbored late-occurring Neandertal populations. Moreover,given reports of the persistence of Neandertal features in earlymodern humans in Europe, interpreted by some researchers asevidence of admixture between these two groups (e.g., Trinkauset al., 2003; Trinkaus, 2005, 2007; Soficaru et al., 2006, 2007;Rougier et al., 2007; but see Harvati et al., 2007), we examined theremaining Eshkaft-e Gavi specimens for evidence of the presenceof Neandertal traits.

Operation B South Baulk

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e excavation notes and information provided by M. Rosenberg. Squares C (MDC-BC) andlevels, and the numbers within these are the lot numbers of individually excavated

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Table 1Inventory of the Eshkaft-e Gavi hominin remains.

Specimen Operation Square Lot Description Estimated age at death

B21-5615 B D 21 Unerupted left mandibular molar (M1 or M2) 3–10 yrsA19-1230 A G 19 Right frontal fragment AdultA14-1500 A G 14 Right parietal fragment (in two pieces) AdultA11-2094 A G 11 Cranial vault, unidentified fragment (in three pieces) AdultA11-2095 A G 11 Cranial vault, unidentified fragment AdultA11-2096 A G 11 Right proximal femoral shaft and metaphysis 3–8A11-2098 A G 11 Left clavicular shaft >12–13 yrsA11-2099 A G 11 Left patella >14–16 yrsA11-2208 A G 11 Right innominate fragment >13–16 yrsA11-2209 A G 11 Left fifth metacarpal, proximal half Adult

J.E. Scott, C.W. Marean / Journal of Human Evolution 57 (2009) 248–259252

Mandibular molar

Eshkaft-e Gavi B21-5615 (Fig. 6) is a left mandibular molar. Theroot is in the initial stages of formation (less than 2 mm long) andthe crown surface is unworn, indicating that the tooth had not yeterupted. Because the tooth was still in its crypt, interproximal wearfacets are absent, making it difficult to ascertain its position alongthe tooth row. A hypoconulid is present, though small (a grade 3cusp 5 under the Arizona State University dental anthropologysystem; see Turner et al. 1991), and it is centrally positioned. Theocclusal morphology of the tooth is not irregular (i.e., there are fivedistinct cusps), suggesting that the tooth is probably an M1 or anM2. The hypoconid and metaconid contact each other, forming theY fissure pattern. Depending on the position of the tooth, theestimated age at death of the individual from whom the specimenderives was as follows: M1, 3–5 years; M2, 6–10 years (Bass, 1995).

There are five small pits, each no larger than 0.5 mm in diam-eter, on the occlusal surface of the molar: one on the hypoconid,near this cusp’s border with the hypoconulid; one on the tip of thehypoconulid; one on the tip of the entoconid; and two onthe mesial marginal ridgedone near the midline of the tooth andthe other located more buccally. These features represent pit-formenamel hypoplasias, enamel defects indicative of developmentalstress (e.g., Hillson and Bond, 1997). Such defects are common inthe remains of late Pleistocene humans (e.g., Trinkaus et al., 2006,2008). In addition to the hypoplasias, a small buccal pit is present inthe buccal groove between the protoconid and hypoconid. Buccalpits have also been observed on other Upper Paleolithic hominins(e.g., Dolnı Vestonice 13 and 15; Trinkaus et al., 2006).

The mesiodistal and buccolingual dimensions of the tooth are11.6 mm and 10.5 mm, respectively. The buccolingual diameter ofthe Eshkaft-e Gavi specimen is fairly typical of late Pleistocenehominins, falling very close to the sample means presented by Baileyand Hublin (2006) for Upper Paleolithic modern humans (M1

mean¼ 10.8; M2 mean¼ 10.6) and Neandertals (M1 mean¼ 10.8;M2 mean¼ 10.8).1 Although molar size is uninformative with respectto group affinity in this case, nonmetric traits can be used todistinguish between Neandertal and modern human molars (Bailey,2002a,b; Bailey and Hublin, 2006; Souday, 2008; Bailey et al., 2009).One such feature is the midtrigonid crest, a ridge of enamel thatconnects the protoconid and the metaconid (Bailey, 2002a,b; Baileyand Hublin, 2006; Bailey et al., 2009). While this feature is present insome modern humans, it is rare (<10%), whereas in Neandertals, it ispresent on over 90% of mandibular first and second molars (Bailey,2002b; Bailey and Hublin, 2006). Notably, specimen B21-5615 doesnot possess the midtrigonid ridge, suggesting that it is probably not

1 The mesiodistal diameter of the Eshkaft-e Gavi molar was not compared to datafrom other Paleolithic hominins due to the confounding influence of interproximalwear in the latter group.

Neandertal. Another feature that has been used to discriminatebetween Neandertal and modern human mandibular molars is theshape of the crown outline (Souday, 2008; see also Bailey et al.,2009), with modern humans having more rectangular molars andthose of Neandertals being more oval. The rectangular shape of theEshkaft-e Gavi molar aligns it more closely with modern humans (C.Souday, pers. comm.).

Frontal bone

Eshkaft-e Gavi A19-1230 (Fig. 7) is a fragment of frontal bonepreserving the superolateral corner of the right orbit and thesurrounding region. Its maximum dimensions are as follows:33.4 mm wide (medial to lateral), 21.0 mm tall (superior to infe-rior), and 22.0 mm deep (anterior to posterior). The lateral half ofthe superior orbital margin is preserved (ca. 20 mm), along witha small portion of the frontal squama (the trigonum supraorbitale,following the terminology employed by Cunningham [1908]) andthe anterior margin of the orbital plate. The zygomatic process isbroken off. The anterior part of the frontozygomatic suture ispresent on the specimen, but posteriorly, the break invades the rootof the zygomatic process. Posterior to the root of the zygomaticprocess, a small flange of bone with a segment of temporal line(measuring 9.2 mm in length), which is very distinct, and a smallportion of the temporal surface of the frontal are present. Theoverall size of the bone and the development of the temporal lineindicate that specimen A19-1230 is from an adult individual.

Although there is a slight bulge directly superior to the supero-lateral corner of the orbit, it is evident that the specimen does notpossess a supraorbital torus. The bulge is roughly teardrop-shaped,with the tail of the teardrop running along the superior orbitalmargin. The transition between the supraorbital region and thefrontal squama, which was apparently quite steep, is smooth, andthere is no sulcus. The lack of a clear separation between theseelements is most evident in medial viewdthe anteriormost extentof the preserved anterior cranial fossa is almost in the same coronalplane as the anteriormost extent of the superior orbital margin; onlyabout 5.0 mm separates the endocranial surface from the ectocra-nial surface at this point. The medial cross section of the supraorbitalmargin is sharp and triangular, not rounded or rectangular, as wouldbe expected if a torus were present. Thus, Eshkaft-e Gavi A19-1230possesses the autapomorphic frontal morphology that is charac-teristic of modern humans (e.g., Cunningham, 1908; Smith andRanyard, 1980; Minugh-Purvis, 1988; Minugh-Purvis et al., 2000;Sladek et al., 2002).

Parietal bone

Eshkaft-e Gavi A14-1500 (Fig. 8A) consists of two pieces of a leftparietal bone that fit together and have been reassembled. It islikely that the break occurred during excavation, as there are other

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Figure 6. Specimen B21-5615, a left mandibular molar (either M1 or M2), in (A) occlusal (mesial is up) and (B) buccal (mesial is to the left) views. Note that the root is in the initialstages of formation. Scale bar equals 10 mm.

J.E. Scott, C.W. Marean / Journal of Human Evolution 57 (2009) 248–259 253

apparently fresh breaks. The sagittal suture and sulcus arepreserved, as well as the parietal foramen, indicating that thefragment is a posterior portion of parietal, from just superior to thelambdoidal suture. The break that divides the two pieces runsnearly parallel to the sagittal suture. The medial fragment of thespecimen is larger and trapezoidal in shape. Its maximum ante-roposterior length is 42.7 mm. The greatest mediolateral dimensionof this fragment of the specimen is 30.4 mm. The smaller (lateral)fragment is bell-shaped, with the base of the bell oriented medially(i.e., articulating with the larger specimen). The length of themedial border is 33.4 mm and the mediolateral width of thespecimen is 18.4 mm. The maximum thickness of the bone is4.9 mm. The bone possesses no diagnostic features.

Other neurocranial fragments

Eshkaft-e Gavi specimens A11-2094 (Fig. 8B, right) and A11-2095(Fig. 8B, left) are fragments of cranial vault that cannot be securely

Figure 7. Specimen A19-1230, a frontal fragment preserving the superolateral corner of the(C) medial views. Scale bar for lateral, anterior, and medial views equals 10 mm; scale bar

identified with regard to position or side. Eshkaft-e Gavi A11-2094has been broken into three pieces, which fit together and have beenreassembled. The breaks are fresh and are likely the result of exca-vation damage. Some of the edges display further excavation breakssuggesting that it was once larger and more complete. The largestpiece accounts for approximately 75–80% of the total specimen.Eshkaft-e Gavi A11-2095 also exhibits a fresh, probably excavation-related break, and it is possible that it derives from the same indi-vidual as specimen A11-2094, given their similarities in bonethickness and preservation, as well as their close proximity. Theendocranial and ectocranial surfaces of these two specimens areextensively abraded and some surfaces are covered with a hardmatrix, obliterating and/or obscuring any features that might aid inidentification or siding (e.g., arachnoid foveae, meningeal grooves,parietal foramina, parietal striae, temporal lines). The thickness ofthe bones indicates that they may be parietal or occipital fragmentsfrom an adult individual. The preservation of these fragments,particularly the adhering matrix, prevents accurate measurement of

right orbit, in (A) lateral, (B) anterior (including close-up photograph of cutmark), andfor close-up of cutmark equals 1 mm.

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Figure 8. Eshkaft-e Gavi bone fragments that do not bear cutmarks: (A) A14-1500, a right parietal fragment, in ectocranial view (the sagittal suture and parietal foramen are to theleft), which exhibits evidence of burning; (B) A11-2094 (right) and A11-2095 (left), unidentified fragments of cranial vault, in ectocranial view; (C) A11-2209, the proximal half ofa left fifth metacarpal, in lateral (above; proximal is left) and dorsal (below; proximal is right) views; (D) A11-2208, a right pelvic fragment, in lateral view (anterior is to the right).Scale bar equals 10 mm.

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their thickness, but these specimens are noticeably thicker thanspecimen A14-1500 (stratified directly below specimens A11-2094and A11-2095), indicating that they probably do not derive from thesame individual as the parietal fragment.

Clavicle

Eshkaft-e Gavi A11-2098 (Fig. 9) is the shaft of a left clavicle. Thesternal end is broken just medial to the attachment site for pec-toralis major. The lateral end is broken at the medialmost extent ofthe trapezoid line. The specimen is otherwise relatively complete,with the following features preserved: the conoid tubercle,subclavian sulcus, and the attachment sites for the deltoideus andtrapezius. The conoid tubercle and the attachment site for thedeltoideus are prominent; however, the other muscle attachmentsites are indistinct. The shaft is very slender, measuring 9.7 mmsuperoinferiorly and 11.0 mm anteroposteriorly at the middle of thepreserved shaft. At the medial break, the latter measurements are9.2 mm and 8.8 mm, respectively. The cortical thickness at themedial break is 2.4–2.9 mm. The medullary cavity is oval in crosssection at the medial break, with the long axis oriented poster-osuperiorly. The specimen could be from a juvenile, as juvenileclavicles are morphologically similar to those of adults (Scheuerand Black, 2000). Without the sternal epiphysis it is difficult todetermine age; however, the length of the preserved portion (ca.92.2 mm) indicates that the individual was likely at least 12–13years of age at death (based on modern human aging standardspresented in Scheuer and Black [2000]).

Neandertal clavicles are similar to those of modern humans inmidshaft circumference, but differ in overall length, with theNeandertal clavicle being longer, and thus appearing more gracile incomparison to modern human clavicles (Trinkaus, 1983). Unfortu-nately, the missing medial and lateral portions make it impossible toaccurately estimate the complete length of the Eshkaft-e Gaviclavicle. While specimen A11-2098 is very gracile, it does fall withinthe range of variation exhibited by modern humans.

Metacarpal

Eshkaft-e Gavi A11-2209 (Fig. 8C) is the proximal half of a leftfifth metacarpal. The break in the shaft follows a roughly diagonalcourse, with the medial half extending more distally than thelateral half. The bone is otherwise relatively well preserved,although the articular surface for the fourth metacarpal is slightlyabraded, exposing the underlying trabecular bone. The greatestproximodistal dimension of the specimen (medially) measures30.3 mm. The maximum mediolateral diameter of the base is14.3 mm; the greatest dorsoventral dimension is 11.8 mm. At theproximalmost point of the shaft break, the bone is oval in crosssection, being wider mediolaterally (8.1 mm) than dorsoventrally(7.0 mm). The thickness of the cortical bone is 1.1–1.8 mm. Themissing distal epiphysis makes the specimen difficult to age,although the preserved portion is similar in size and morphology tothe fifth metacarpals of modern human adults.

Trinkaus (1983) noted that the fifth metacarpals of someNeandertals are characterized by strong muscle insertion sites,particularly for extensor carpi ulnaris and opponens digiti minimi.In the case of the latter, some Neandertal specimens exhibita distinct crest on the ulnar aspect of the metacarpal shaft,a condition that Trinkaus (1983) described as rare in modernhumans. Specimen A11-2209 does not possess a distinct crest on itsulnar aspect. Moreover, the proximal articular surface of the Esh-kaft-e Gavi specimen is sellar (i.e., mediolaterally concave), as inmodern humans, which contrasts with the more condyloid (i.e.,mediolaterally convex) condition observed in Neandertal fifthmetacarpals (Trinkaus and Villemeur, 1991).

Os coxa

Eshkaft-e Gavi A11-2208 (Fig. 8D) is a right pelvic fragment. Itpreserves the posteroinferior arm of the lunate surface of theacetabulum, the superior tip of the ischial tuberosity, the poster-osuperior border of the obturator foramen, and a portion of the

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Figure 9. Specimen A11-2098, the shaft of a left clavicle, in superior view (medial is up; scale bar equals 10 mm), with close-up photograph of the cutmark located on anteriorsurface (scale bar equals 1 mm).

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medial surface just inferior to the arcuate line (which is notpreserved). The maximum proximodistal height and ante-roposterior breadth of the specimen are both approximately40.0 mm, while the maximum mediolateral dimension is approxi-mately 37.0 mm. There is a hole through the bone that runs fromthe medial surface internally out through the ischium externally,just superior to the ischial tuberosity. The portion of ischial tuber-osity that is preserved is fused, indicating that the individual was atleast 13–16 years of age at death (Scheuer and Black, 2000).

While there are several documented differences between thepelves of modern humans and Neandertals, most of these are foundin the pubis and ilium (e.g., McCown and Keith, 1939; Stewart,1960; Trinkaus, 1976a, 1983; Rak and Arensburg, 1987; Rak, 1990).One feature of the ischium that has been discussed in relation todifferentiating Neandertals from modern humans is the position ofthe groove for the internal obturator muscle in relation to theischial tuberosity (Rak, 1990; Trinkaus, 1996). The Eshkaft-e Gavispecimen preserves only the very uppermost margin of the ischialtuberosity and the region superior to the tuberosity is damaged, butit appears that that the groove for the internal obturator muscle islocated entirely cranial to the tuberosity. Rak (1990) argued thatthis configuration was typical of modern humans, whereas inNeandertals, the groove is shifted caudally, thus encroaching on thetuberosity. However, Trinkaus (1996) showed that the position ofthe groove for the internal obturator muscle is actually much morevariable in late Pleistocene hominins and modern humans, withboth forms of the groove, as well as intermediate variants, beingpresent in modern humans and Neandertals. Consequently, thisfeature is uninformative with respect to the specimen’s affinities.

Femur

Eshkaft-e Gavi A11-2096 (Fig. 10) is a fragment of the left prox-imal femoral shaft of a juvenile individual, as indicated by its smallsize and unfused lesser trochanter. The fragmentary condition of the

bone renders aging of the individual extremely difficult, although anestimate of 3–8 years of age at death seems reasonable based oncomparisons with more complete modern human material. Themaximum proximodistal length of the fragment is 56.5 mm.Proximally, the neck and the metaphyseal surface for the greatertrochanter are not preserved, having been broken transversely at thelevel of the inferior border of the neck-shaft junction. The superiorportion of the posterior half of the bone has also been broken awaydown to the metaphyseal surface of the lesser trochanter. Thus, theanterior surface extends farther proximally than does the posteriorsurface. Only about half of the metaphysis for the lesser trochanter ispreserved; this feature is medially placed and visible in anteriorview. Inferior to the lesser trochanter, the gluteal tuberosity and thepectineal and spiral lines are present and well defined. Distally,slightly less than 30 mm below the inferior border of the lessertrochanter, the bone is broken at the point where these muscleattachment sites converge into the linea aspera. This break is right inangle and transverse in shape, suggesting that it occurred when thebone was in a dry state (Villa and Mahieu, 1991) and therefore wasnot related to marrow extraction. At the break, the shaft is slightlyoval in cross section, with a maximum diameter of 15.1 mm (runningposterolaterally to anteromedially) and a minimum diameter(perpendicular to the maximum dimension) of 12.8 mm. The corticalbone has a maximum thickness of 4.4 mm and a minimum thicknessof 3.0 mm. The medullary cavity has a maximum diameter of 6.9 mm(length) and a minimum diameter (perpendicular to the long axis) of5.7 mm. There is no evidence of pilastry.

In comparison to a small sample of modern juvenile humanfemora, the gluteal tuberosity of the Eshkaft-e Gavi femur is rugoseand mediolaterally extensive, merging with the pectineal linemedially. However, it does not take the form of a ridge. The spec-imen lacks features associated with strong development of thegluteus maximus seen in some juvenile Neandertals, such asa hypotrochanteric fossa and a third trochanter (Trinkaus, 1976b).The lack of a pilaster on the posterior femoral surface is

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Figure 10. Specimen A11-2096, a left proximal juvenile femoral fragment, in (A) anterior and (B) posterior views (proximal is up; scale bar equals 10 mm), with close-upphotograph of some of the cutmarks located on the bone’s anterior surface (scale bar equals 1 mm).

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a characteristic of Neandertal femora (Trinkaus, 1976b), but theabsence of this feature can also be explained by the age of theindividual at death, as the pilaster usually develops after puberty(Scheuer and Black, 2000) in modern humans.

Patella

Eshkaft-e Gavi A11-2099 (Fig. 11) is a complete left patella. Thesurfaces of the superior, medial, lateral, and inferior edges ofthe bone are damaged, exposing the underlying trabeculae; thedamage to the inferior edge is extensive, invading the inferiorportion of the medial and lateral articular facets. The bone iscompletely ossified, indicating that the individual was at least 14–16 years of age at death (Scheuer and Black, 2000). The maximum

Figure 11. Specimen A11-2099, a left patella, in (A) anterior and (B) posterior view

superoinferior and mediolateral dimensions are 34.4 mm and39.2 mm, respectively. The anteroposterior thickness of the bone is18.6 mm. The widths of the femoral articular facets are highlyasymmetric, with the medial articular facet (18.65 mm) being 72.0%the size of the lateral facet (25.9 mm). This degree of asymmetry istypical of early and recent modern humans, but it falls outside therange of variation (75.5–90.0%) for Neandertal patellae, which tendto be more symmetrical (Trinkaus, 2000).

Number of individuals in the sample

Based only on the lack of repetition of skeletal elements, theminimum number of individuals in the sample is one. However, it isclear that the sample is composed of individuals of different

s, with a close-up photograph of the cutmarks. Both scale bars equal 10 mm.

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ontogenetic ages. The femur and the molar both indicate thepresence of at least one individual under the age of ten years amongthe remains, and their stratigraphic separationdthe femur is nearthe top of the Upper Paleolithic/Epi-Paleolithic sequence and themolar is at the basedindicates that there are two subadults in theassemblage. On the other hand, the clavicle, patella, pelvic frag-ment, fifth metacarpal, and the four cranial fragments all signal thepresence of at least one older individual.

The parietal fragment can be separated from the other neuro-cranial fragments based on overall thickness: specimens A11-2094and A11-2095 are thick and likely from a fully adult individual,while specimen A14-1500 is thinner and probably belongs toa different individual, possiblydthough not necessarilydasubadult. The frontal fragment is most likely from an adult, giventhe marked development of the temporal line. The parietal andfrontal fragments could represent the same individual, and theirclose stratigraphic proximity is consistent with this conclusion.Thus, at least four individuals are represented among the Eshkaft-eGavi human remains.

Evidence of butchery and burning

Several of the Eshkaft-e Gavi specimens show clear signs ofbutchery and burning. Stone-tool cutmarks, diagnosed using pub-lished criteria (Blumenschine et al., 1996) and an extensive collec-tion of experimentally generated surface marks for comparison,were identified on four of the bones: (1) the frontal fragment hasa single cutmark on the ectocranial surface near the medial breaksuperior to the orbit (Fig. 7); (2) the clavicle has a single cutmark inthe center of the diaphysis (Fig. 9); (3) the patella has multiplecutmarks on the anteroinferior surface near the inferior margin ofthe bone (Fig. 11); and (4) the juvenile femur has cutmarks on theanterior aspect of the proximal shaft (Fig. 10). The cutmarks on thefemur are slices (they enter the bone at an angle), and they occur ina parallel-to-subparallel manner down the shaft. This pattern isconsistent with a few related slicing actions for defleshing (Binford,1981; Nilssen, 2000).

These four bones, along with the parietal fragment, also exhibitevidence of extensive burning. The frontal fragment, clavicle,femur, and patella each exhibit a black carbonization over most oftheir surfaces. The frontal fragment and femur are also character-ized by a white calcining, on the far left portion of the margin in thecase of the frontal fragment and on the posterior surface of thefemoral diaphysis. The parietal is covered with a dark-graycarbonization across the entire endocranial surface and part of theectocranial surface, and both surfaces have a lustrous sheen.

The presence of cutmarks and burning raises the possibility thatthe human remains were cannibalized. Cannibalism is a topic thathas both inherent appeal and targeted bias, and identifying it in thearchaeological record requires rigorous method and documentation(Villa et al., 1988; White, 1992; Villa, 1992). To begin, two questionsmust be addressed: (1) Is there evidence for human butchery? and(2) Is there evidence for human consumption? Here, we use the term‘‘butchery’’ to simply mean intentional dismemberment and/ordefleshing by people, and no goal to that action is implied. Dis-memberment and/or defleshing can be carried out with many goalsin mind, including consumption and ritual preparation for burial.

The cutmarks reported here have all the features regularly usedto diagnose stone-tool cutmarks (Fisher, 1995; Blumenschine et al.,1996), and they are clearly not the result of tramplingdthe marksare subparallel and appear to have been made by the same stone andaction; most are long scraping marks, which have not been reportedin trampling damage; the marks are deep and V-shaped, and onecan clearly see that the sharp-edged tool cut into the bone at a steepangle (Behrensmeyer et al., 1986); and each mark occurs at

a location where flesh would have been removed (femur or clavicle),or either disarticulation (patella) or defleshing/skinning (frontal)would have been the goal. These are clearly stone-tool cutmarksgenerated in the process of defleshing and/or dismemberment.

Three of the four cutmarked specimens (patella, clavicle, femur)come from the same feature (Lot 11). Lot 11 is part of a stratum thatoccurs in the back of the cave and fills a large shallow pit. It is anashy deposit with various ashy lenses. There are 161 other frag-ments of mammal bone from mostly bovids and/or cervids, and 31%of all of the fragments are burned. Lithic artifacts are common. Theexcavators thought Lot 11 might be a secondary burial, and theyargued that it may be Epi-Paleolithic or later. However, it seemsmore likely that it is a secondary dump for ash and debris fromhearths (explaining the ashy lenses), or, less likely, a location of insitu burning. Either way, the large quantity of burned nonhumanbone seems inconsistent with a burial, either primary or secondary,and it seems more likely that the human bone is there in the samecontext as the mammal bone: as food refuse from a butchery-and-cooking event. This inference is more consistent with cannibalism,and less consistent with ceremonial defleshing, but the smallsample of material makes a firm conclusion impossible. Never-theless, the cutmarks on the Eshkaft-e Gavi specimens add toa growing sample of butchered hominin remains extending backinto the Plio-Pleistocene (e.g., White, 1986; Fernandez-Jalvo et al.,1996, 1999; Defleur et al., 1999; Pickering et al., 2000; RamirezRozzi et al., 2009).

Conclusions

The hominin remains described here derive from Eshkaft-e Gavi,a cave in the southern Zagros Mountains, Iran. While the cavepreserves Epi-, Upper, and Middle Paleolithic deposits, all of thespecimens come from the Epi- and Upper Paleolithic deposits.Hominin remains are not common from Zagros Mountain sites, andthus Eshkaft-e Gavi is notable for having a sample, albeit rathersmall. However, the excavations there were not extensive, and thepresence of these specimens suggests that the site may have moreremains that could be revealed through expanded excavations.Consistent with their Epi- and Upper Paleolithic context, thehominin remains appear to represent anatomically modernhumans. The age of the bulk of the sample is uncertain, but themolar occurs at the base of the Upper Paleolithic sequence near theboundary with the Middle Paleolithic. It lacks diagnostic Nean-dertal features and is morphologically similar to modern humanmaterial, and thus, like the early Upper Paleolithic industries inEurope (e.g., the Aurignacian), the Baradostian appears to beassociated with modern humans. The younger specimens exhibitno evidence of archaic features; in each case where diagnosticanatomy is preserved, it is anatomically modern. Many of thehominin specimens are burned, perhaps from cooking, but thesample and contextual information are insufficient to confidentlystate whether this burning resulted from intentional cooking orsecondary burning. Four of the hominin specimens show cleartraces of stone-tool butchery by humans, and this patterning ismore consistent with cannibalism, though such an inference shouldbe regarded cautiously, given the small sample. Regardless, theEshkaft-e Gavi hominin sample expands the record of humanbutchery of human carcasses into the Upper Paleolithic/Epi-Paleolithic of the Zagros Mountains.

Acknowledgements

The analysis of the Zagros faunal collections was funded by NSFgrant SBR-9727668 to CWM. We thank the following people foraiding us in various aspects of this study: Yoshiko Abe for producing

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the first drafts of the site plan and stratigraphy figures, and assistingwith the analysis of the nonhuman faunal assemblage; NaomiCleghorn for a draft of Fig. 1; Melinda Zeder and the SmithsonianInstitution for lending the collection to CWM; Caroline Souday forgraciously sharing her knowledge of molar shapes in the genusHomo; Michael Rosenberg for providing helpful information aboutthe site and reading this manuscript and checking our excavationdetails for accuracy; and Fereidoun Biglari for providing Eshkaft-eGavi’s geographic coordinates. We are grateful to Steve Leigh, theassociate editor, Erik Trinkaus, and two anonymous reviewers forproviding helpful comments and suggestions that greatly improvedthe manuscript.

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