The shell morphology of the latest Cretaceous (Maastrichtian) trionychid turtle Helopanoplia distincta

Background Helopanoplia distincta is an extinct soft-shelled turtle (Pan-Trionychidae) for which the type specimen is a fragmentary costal and the inguinal notch portion of the left hypoplastron from the Late Cretaceous (Maastrichtian) Lance Formation of Wyoming, USA that bear a distinct surface scu...

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Bibliographic Details

Published in:	PeerJ
Main Authors:	Walter G. Joyce, Tyler R. Lyson
Format:	Article
Language:	English
Published:	PeerJ Inc. 2017-12-01
Subjects:	Maastrichtian Testudines Trionychidae Cryptodira Helopanoplia distincta Hell Creek Formation
Online Access:	https://peerj.com/articles/4169.pdf