''Irajatherium'' 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 ...
of
cynodont
The cynodonts () ( clade Cynodontia) are a clade of eutheriodont therapsids that first appeared in the Late Permian (approximately 260 mya), and extensively diversified after the Permian–Triassic extinction event. Cynodonts had a wide variet ...
s, known only of 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( ...
''Irajatherium hernandezi''.
[Martinelli et al., 2005] It is named in honor of
Irajá Damiani Pinto.
Species
''Irajatherium hernandezi'' is a species known only by a humerus, a femur, two jaws and an upper arch incomplete, has the upper canine teeth after pills across and the post-mandibular canines with a more developed central cusp, followed by three smaller ones. It was collected in the
Candelária Formation in the municipality of
Faxinal do Soturno
Faxinal do Soturno is a municipality in the state of Rio Grande do Sul, Brazil.
See also
*List of municipalities in Rio Grande do Sul
This is a list of the municipalities in the state of Rio Grande do Sul (RS), located in the South Region of Br ...
in the
Paraná Basin
The Paraná Basin ( pt, Bacia do Paraná, es, Cuenca del Paraná) is a large cratonic sedimentary basin situated in the central-eastern part of South America. About 75% of its areal distribution occurs in Brazil, from Mato Grosso to Rio Grande ...
of southeastern
Brazil
Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...
.
Revista Ciência Hoje
References
Bibliography
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*
External links
Dinosaurs of Rio Grande do Sul
Figura
{{Taxonbar, from=Q3285531
Tritheledontidae
Prehistoric cynodont genera
Carnian genera
Late Triassic synapsids of South America
Triassic Brazil
Fossils of Brazil
Paraná Basin
Fossil taxa described in 2005
Taxa named by José Bonaparte