†unranked clade Cyamodontida Nopsca 1923 (placodont)
Parent taxon: Cyamodontoidea according to O. Rieppel 2001
See also Kuhn 1971, Miguel Chaves et al. 2018 and Rieppel 2000
Sister taxa: Placochelyida, Placochelyidae, Priscochelys, Psephosauriscus, Psephosaurus picardi
Subtaxa: Henodus Psephodermatidae
Ecology:
Distribution: found only at Lustnau Gipskeuper near Tübingen (Triassic of Germany)