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The Palaeontological Association | Reg. Charity No. 1168330...of the Karagan basin described was considerably diluted with fresh water from the rivers. These conditions were favourable
The Palaeontological Association | Reg. Charity No. 1168330 · origination and extinction are lower when range extensions and ghost lineages are included, estimates of the magnitude
The Palaeontological Association | Reg. Charity No. 1168330 · 2017. 11. 14. · juvenis (Salter) is distinguished from P. octolobatus (M 'Coy) ... Cranidium semi-elliptical to sub-parabolic
The Palaeontological Association | Reg. Charity No. 1168330...in P20-22 (Perpendicular point S37/f620, 732-734; specimens NZGS EC561, 562, 564, 565, and OU8583h). The species also
The Palaeontological Association | Reg. Charity No. 1168330 · 2017. 11. 14. · THE UNUSUAL BRACHIAL SKELETON OF ATTENUATELLA CONVEX A SP. NOV. (BRACHIOPODA) by JOHN ARMSTRONG Excellently
The Palaeontological Association | Reg. Charity No. 1168330 · branchs, brachiopods, and echinoids. A few were also found adhering to inorganic frag- ments, mostly ooliths. In thin-sections
The Palaeontological Association | Reg. Charity No. 1168330 · Sarjeant, in Davey et al. (1966), reviewing cysts with a Gonyaulax-type tabulation, erected the new genus Rhaetogonyaulax
The Palaeontological Association | Reg. Charity No. 1168330 · The Trochidae, of which family Margarites is regarded as the most primitive member (Thiele 1929), are everywhere characteristic