div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: Jackson School of Geosciences The University of Texas at · behind it Two competing theories have attempted to account for this transformation An evolutionary hypothesis argues src=https:reader034fdocumentsusreader034viewer2022052615609186f92577b04f71056870html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: Jackson School of Geosciences The University of Texas at · behind it Two competing theories have attempted to account for this transformation An evolutionary hypothesis argues src=https:reader034fdocumentsusreader034viewer2022052615609186f92577b04f71056870html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: Jackson School of Geosciences The University of Texas at · behind it Two competing theories have attempted to account for this transformation An evolutionary hypothesis argues src=https:reader034fdocumentsusreader034viewer2022052615609186f92577b04f71056870html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: Jackson School of Geosciences The University of Texas at · behind it Two competing theories have attempted to account for this transformation An evolutionary hypothesis argues src=https:reader034fdocumentsusreader034viewer2022052615609186f92577b04f71056870html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 5button div class=trans-image amp-img class=trans-thumb alt=Page 5: Jackson School of Geosciences The University of Texas at · behind it Two competing theories have attempted to account for this transformation An evolutionary hypothesis...