''Carbonodraco'' is an extinct

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

acleistorhinid Acleistorhinidae is an extinct Family (biology), family of Late Carboniferous and Early Permian-aged (Moscovian (Carboniferous), Moscovian to Kungurian stage) parareptiles. Acleistorhinids are most diverse from the Richards Spur locality of the E ...

parareptile Parareptilia ("at the side of reptiles") is a subclass or clade of basal sauropsids (reptiles), typically considered the sister taxon to Eureptilia (the group that likely contains all living reptiles and birds). Parareptiles first arose near the ...

known from the

Late Carboniferous Late may refer to: * LATE, an acronym which could stand for: ** Limbic-predominant age-related TDP-43 encephalopathy, a proposed form of dementia ** Local-authority trading enterprise, a New Zealand business law ** Local average treatment effe ...

Ohio Ohio () is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Of the List of states and territories of the United States, fifty U.S. states, it is the List of U.S. states and territories by area, 34th-l ...

. It contains a single species, ''Carbonodraco lundi''. It was closely related to ''

Colobomycter ''Colobomycter'' is an extinct genus of lanthanosuchoid parareptile known from the Early Permian of Oklahoma. Discovery The type species, ''Colobomycter pholeter'', was first described from fossil remains in 1958, at which time it was belie ...

'', a parareptile from the

early Permian 01 or '01 may refer to: * The year 2001, or any year ending with 01 * The month of January * 1 (number) Music * 01'' (Richard Müller album), 2001 * ''01'' (Son of Dave album), 2000 * ''01'' (Urban Zakapa album), 2011 * ''O1'' (Hiroyuki Sawano ...

of Oklahoma. ''Carbonodraco'' is the oldest known parareptile, and is slightly older than ''

Erpetonyx ''Erpetonyx'' is an extinct genus of bolosaurian parareptile from the Gzhelian stage of the Carboniferous period, with a single known species: ''Erpetonyx arsenaultorum''. It is known from a single articulated and mostly complete specimen from ...

'', the previously oldest known parareptile. Specimens of ''Carbonodraco'' are limited to skull and jaw fragments found at the Ohio Diamond Coal mine in Linton, Ohio. These include the

holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of seve ...

specimen (CM 23055, a crushed skull) and two referred specimens (NHMUK R. 2667, a right jaw; CM 81536, a pair of dentaries). Several of the ''Carbonodraco'' specimens were previously referred to the Carboniferous

eureptile Eureptilia ("true reptiles") is one of the two major subgroups of the clade Sauropsida, the other one being Parareptilia. Eureptilia includes Diapsida (the clade containing all modern reptiles and birds), as well as a number of primitive Permo ...

Cephalerpeton ''Cephalerpeton'' is an extinct genus of " protorothyridid" eureptile known from the Late Carboniferous (late Westphalian stage) of Illinois. It is known from the holotype YPM 796, a partial skeleton. It was collected in the Mazon Creek ...

'' by Reisz &

Baird Baird may refer to: Places United States * Baird, Mississippi, an unincorporated community * Baird, Missouri, an unincorporated community * Baird, Texas, a city * Baird, Washington, a community * Baird Mountains, Alaska * Baird Inlet, Alaska ...

(1983). They were recognized as a distinct species in a 2019 study by

Mann Mann may refer to: Arts, entertainment and media * Mann (chess), a variant chess piece which moves as a king * Mann (film), ''Mann'' (film), a 1999 Bollywood motion picture * Mann (magazine), ''Mann'' (magazine), a Norwegian magazine * Mann Th ...

''et al''.

References

{{Taxonbar, from=Q96374439 Carboniferous reptiles of North America Procolophonomorphs Fossil taxa described in 2019 Prehistoric reptile genera