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Temporal range: Late Triassic
~221.5–205.6 Ma
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Order: Therapsida
Suborder: Cynodontia
Family: Tritheledontidae
Genus: Irajatherium
Bonaparte 2005
  • Irajatherium hernandezi

Irajatherium is an extinct genus of cynodonts, known only of the type species Irajatherium hernandezi.[1] It is named in honor of Irajá Damiani Pinto.


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 municipality of Faxinal do Soturno in Paleorrota, Brazil.[2]


  1. ^ Martinelli, A.G., Bonaparte, J.F., Schultz, C.L. and Rubert, R. (2005). "A new tritheledontid (Therapsid, Eucynodontia) from the Late Triassic Rio Grande do Sul (Brazil) and its phylogenetic relationships among carnivorous non-mammalian eucynodonts". Ameghiniana. 42 (1): 191–208. 
  2. ^ Revista Ciência Hoje Archived 2010-10-10 at the Wayback Machine.

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