After Hirayama, 1997, and Parham, 2005
†Osteopygis Cope, 1868
†Lytopoma Cope, 1870(?)
†Catapleura
†Propleura
†Erquelinnesia Hay, 1908(?)
†Osteopygis emarginatus Cope, 1868
†Chelone sopita Leidy, 1865 (nomen vanum)
†Osteopygis sopita (Leidy); Cope, 1868 (nomen vanum)
†Osteopygis emarginatus Cope, 1868
†Osteopygis chelydrinus Cope, 1868
†Osteopygis platylomus Cope, 1868
†Lytopoma angusta Cope, 1870
†Osteopygis erosus Cope, 1875
†Catapleura chelydrina Cope, 1875
†Osteopygis gibbi Wieland, 1904
†Propleura borealis Wieland, 1904
†Osteopygis borealis (Wieland?) Hay, 1908
†Osteopygis robustus Hay, 1908
†Lytopoma wielandi Hay, 1908
†Erquelinnesia molaria Hay, 1908
Reference(s):
- Hirayama, R., 1997: Distribution and diversity of Cretaceous chelonioids. 225-243.
in Callaway, J. M. & Nicholls, E. L., (eds.), 1997: Ancient marine reptiles.
–Academic Press, San Diego, 1997, pp. xlvi - 501