Reptilia - Testudines - Protostegidae

Full reference: R. Lydekker. 1889. On remains of Eocene and Mesozoic Chelonia and a tooth of (?) Ornithopsis. Quarterly Journal of the Geological Society of London 45:227-246

Belongs to Rhinochelys according to R. Lydekker 1889

Sister taxa: Rhinochelys brachyrhina, Rhinochelys elegans, Rhinochelys jessoni, Rhinochelys macrorhina, Rhinochelys pulchriceps

Type specimen: BMNH 43980, a partial skull

Ecology: aquatic omnivore