''Comahuesuchus'' is an

extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

notosuchia Notosuchia is a suborder of primarily Gondwanan mesoeucrocodylian crocodylomorphs that lived during the Jurassic and Cretaceous. Some phylogenies recover Sebecosuchia as a clade within Notosuchia, others as a sister group (see below); if Sebecosu ...

crocodylomorph Crocodylomorpha is a group of pseudosuchian archosaurs that includes the crocodilians and their extinct relatives. They were the only members of Pseudosuchia to survive the end-Triassic extinction. During Mesozoic and early Cenozoic times, cro ...

s from the

Santonian The Santonian is an age in the geologic timescale or a chronostratigraphic stage. It is a subdivision of the Late Cretaceous Epoch or Upper Cretaceous Series. It spans the time between 86.3 ± 0.7 mya (million years ago) and 83.6 ± 0.7 mya. The ...

Bajo de la Carpa Formation The Bajo de la Carpa Formation is a geologic formation of the Neuquén Basin that crops out in northern Patagonia, in the provinces of Río Negro and Neuquén, Argentina. It is the oldest of two formations belonging to the Río Colorado Subgroup ...

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...

. It was described by

palaeontologist Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fossi ...

José Bonaparte José Fernando Bonaparte (14 June 1928 – 18 February 2020) was an Argentine paleontologist who discovered a plethora of South American dinosaurs and mentored a new generation of Argentine paleontologists . One of the best-known Argentine paleo ...

in 1991. The

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...

is ''C. brachybuccalis''.''Comahuesuchus''
at

Fossilworks Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ...

.org

Classification

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 several ...

of ''C. brachybuccalis'' is MUCPv-202. ''Comahuesuchus'' is the name-sake of the clade

Comahuesuchidae Comahuesuchidae is a family of notosuchian crocodyliforms. Constructed in 1991, it includes the genera ''Comahuesuchus'' and ''Anatosuchus''. Among the characteristics that are unique to this family is an external naris that is inset into the tip ...

. Sereno et al. (2003) suggested that ''Comahuesuchus'' and ''

Anatosuchus ''Anatosuchus'' ("duck crocodile", the name from the Latin ''anas'' ("duck") and the Greek language, Greek ''souchos'' ("crocodile"), for the broad, duck-like snout) is an extinct genus of notosuchian Crocodylomorpha, crocodylomorph discovered in ...

'' are both comahuesuchids, but work by Martinelli and Andrade et al. (2006), has suggested that ''A. minor'' is not a comahuesuchid. ''Comahuesuchus'' seems instead to be more closely related to ''

Mariliasuchus ''Mariliasuchus'' ("Marilia crocodile") is an extinct genus of Late Cretaceous notosuchian mesoeucrocodylian found near Marilia, Brazil. The first bone remains were found and collected in 1995 by Brazilian paleontologist William Nava, in red r ...

''.

References

Bibliography

* Andrade, M.B.; Bertini, R. J. ; Pinheiro, A. E. P. (2006). Observations on the palate and choanae structures in Mesoeucrocodylia (Archosauria, Crocodylomorpha): phylogenetic implications. ''Revista Brasileira de Paleontologia, Sociedade Brasileira de Paleontologia'' 9 (3): 323–332. * Sereno, P. C., Sidor, C. A., Larsson, H. C. E., and Gado, B. (2003). A new notosuchian from the Early Cretaceous of Niger. ''Journal of Vertebrate Paleontology'' 23 (2): 477–482.

External links

Andrade et al. (2006)

Sereno et al. (2003)

The Paleobiology Database
Ziphosuchians Santonian life Late Cretaceous crocodylomorphs of South America Cretaceous Argentina Fossils of Argentina Bajo de la Carpa Formation Fossil taxa described in 1991 Prehistoric pseudosuchian genera {{paleo-archosaur-stub