Robuta

https://dash.harvard.edu/entities/publication/73120378-8baa-6bd4-e053-0100007fdf3b The Cranial Morphology of Kayentachelys, an Early Jurassic Cryptodire, and the Early History of... The skull morphology of Kayentachelys aprix Gaffney et al., 1987, a turtle from the Early Jurassic Kayenta Fm of northern Arizona, demonstrates the presence of... cranialmorphology