Coelostegus

Coelostegus; Temporal range: Late Carboniferous, 307.1–305 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Eureptilia
Genus:	†Coelostegus; Carroll & Baird, 1972
Species:	†C. prothales
Binomial name
	†Coelostegus prothales; Carroll & Baird, 1972

Coelostegus is an extinct genus of Late Carboniferous (late Westphalian stage) basal reptile known from Pilsen of Czech Republic. It is known from the holotype ČGH 3027, a partial skeleton of an immature individual. It was collected in the Nýřany site from the Nýřany Member of the . It was first named by Robert L. Carroll and Donald Baird in 1972 and the type species is Coelostegus prothales.^[1] The most recent phylogenic study of primitive reptile relationships found Coelostegus to be the basalmost known eureptile.^[2]

References[]

^ Robert L. Carroll & Donald Baird (1972). "Carboniferous Stem-Reptiles of the Family Romeriidae". Bulletin of the Museum of Comparative Zoology. 143 (5): 321–363.
^ Müller, J.; Reisz, R. R. (2006). "The phylogeny of early eureptiles: comparing parsimony and Bayesian approaches in the investigation of a basal fossil clade". Systematic Biology. 55 (3): 503–511. doi:10.1080/10635150600755396. PMID 16861212.

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[earlyrep-1] Robert L. Carroll & Donald Baird (1972). "Carboniferous Stem-Reptiles of the Family Romeriidae". Bulletin of the Museum of Comparative Zoology. 143 (5): 321–363.

[MR06-2] Müller, J.; Reisz, R. R. (2006). "The phylogeny of early eureptiles: comparing parsimony and Bayesian approaches in the investigation of a basal fossil clade". Systematic Biology. 55 (3): 503–511. doi:10.1080/10635150600755396. PMID 16861212.

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