Full reference: R. L. Carroll and P. Gaskill. 1978. The Order Microsauria. Memoirs of the American Philosophical Society 126:1-211
Parent taxon: Microsauria according to R. L. Carroll and P. Gaskill 1978
See also Carroll 1988 and Carroll et al. 1998
Sister taxa: Altenglanerpeton, Amblyodon, Archerpeton, Barillopus, Cymatorhiza, Dromillopus, Eurythorax, Haplosauri, Hylonomidae, Hyphasma, Microbrachidae, Microbrachomorpha, Novascoticus, Ornithoides, Paramicrobrachis, Pariostegus, Protritonidae, Ptyoniidae, Puertollanopus, Sauropleuridae, Saxonerpeton, Stenichnus, Thyrsidium, Urosauri, Utaherpeton
Subtaxa: Goniorhynchidae Trihecatontidae Tuditanidae
Ecology: planktonic suspension feeder
Distribution:
• Permian of United States (3: Oklahoma collections)
• Carboniferous of Canada (1: Nova Scotia), Czechia (2), United States (3: Colorado, Ohio)
Total: 9 collections including 12 occurrences