The earliest possible choristodere (Diapsida) and gaps in the fossil record of semi-aquatic Reptiles
@article{Storrs1993TheEP, title={The earliest possible choristodere (Diapsida) and gaps in the fossil record of semi-aquatic Reptiles}, author={Glenn W. Storrs and David J. Gower}, journal={Journal of the Geological Society}, year={1993}, volume={150}, pages={1103 - 1107} }
New fossil material of the problematic reptile species Pachystropheus rhaeticus from the uppermost Triassic (Rhaetian) of England, and re-examination of other specimens, demonstrate that it may be the earliest known example of the Choristodera, a poorly understood group of semi-aquatic diapsid reptiles. As a result, the fossil record of choristoderes is extended back in time by approximately 45 million years and a significant gap in the fossil record of these reptiles is highlighted. Failure of…
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