†Archelon ischyros Wieland 1896 (sea turtle)
Click image to enlarge. Click to access iDigBio record.
Reptilia - Testudines - Protostegidae
Full reference: G. R. Wieland. 1896. Archelon ischyros: a ne gigantic cryptodire testudinate from the Fort Pierre Cretaceous of South Dakota. The American Journal of Science, series 4 2(12):399-412
Belongs to Archelon according to O. P. Hay 1930
See also Hay 1902, Swinton 1934, Wieland 1896, Wieland 1900, Wieland 1909 and Zangerl 1953
Sister taxon: Archelon marshii
Type specimen: Its type locality is south fork, Cheyenne River, which is in a Campanian/Maastrichtian terrestrial horizon in the Pierre Shale Formation of South Dakota
Ecology: aquatic omnivore
Distribution: found only at south fork, Cheyenne River
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.