Details

Series volume

Olshevsky, G. 1991. A Revision of the Parainfraclass Archosauria Cope, 1869, Excluding the Advanced Crocodylia. Mesozoic Meanderings (2), 24 Oct 1991: i-iv, 1-196. [First printing] ≡

New: Subsequent name (orig. rank & spell.)

†Ultrasauros (Genus) Olshevsky, 1991

Page: 21 ("n. gen.").

New: Subsequent spelling

†Arkansaurus (Genus) Sattler, 1983, nom. nud., nom. dub.

Page: 121 ("to be described").