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Psephoderma
Taxonomy
Psephoderma was named by von Meyer (1858) [Sepkoski's age data: Tr Nori Tr Rhae Sepkoski's reference number: 2,940]. It is not extant. It is the type genus of Psephodermatidae.
It was assigned to Psephodermatidae by Kuhn (1971); to Cyamodontidae by Carroll (1988), Pinna and Nosotti (1989); to Cyamodontoidea by Rieppel and Hagdorn (1999); to Placochelyidae by Rieppel (2000); to Placochelyida by Rieppel (2001); and to Placodontia by Sepkoski (2002).
It was assigned to Psephodermatidae by Kuhn (1971); to Cyamodontidae by Carroll (1988), Pinna and Nosotti (1989); to Cyamodontoidea by Rieppel and Hagdorn (1999); to Placochelyidae by Rieppel (2000); to Placochelyida by Rieppel (2001); and to Placodontia by Sepkoski (2002).