†unranked clade Nyctiphruretia Lee 1995 (parareptile)
Full reference: M. S. Y. Lee. 1995. Historical Burden in Systematics and the Interrelationships of Parareptiles. Biological Reviews 70(3):459-547
Parent taxon: Procolophonomorpha according to M. S. Y. Lee 1997
See also Ivakhnenko 2008 and Lee 1995
Sister taxa: Ankyramorpha, Australothyris, Procolophonia, Procolophonida, Sclerosauridae
Subtaxa: Nycteroleteridae
Ecology:
Distribution:
• Permian of the Russian Federation (15 collections), United States (1: Oklahoma)
Total: 16 collections including 20 occurrences