Tarjadia is an extinct genus of erpetosuchid pseudosuchian, distantly related to modern crocodilians. It is known from a single species, T. ruthae, first described in 1998 from the Middle Triassic Chañares Formation in Argentina. Partial remains have been found from deposits that are Anisian-Ladinian in age. Long known mostly from osteoderms, vertebrae, and fragments of the skull, specimens described in 2017 provided much more anatomical details and showed that it was a fairly large predator. Tarjadia predates known species of aetosaurs and phytosaurs, two Late Triassic groups of crurotarsans with heavy plating, making it one of the first heavily armored archosaurs. Prior to 2017, most studies placed it outside Archosauria as a member of Doswelliidae, a family of heavily armored and crocodile-like archosauriforms.[1][2] The 2017 specimens instead show that it belonged to the Erpetosuchidae.[3]
^Cite error: The named reference Archeopelta was invoked but never defined (see the help page).
^Ezcurra, Martín D. (2016-04-28). "The phylogenetic relationships of basal archosauromorphs, with an emphasis on the systematics of proterosuchian archosauriforms". PeerJ. 4: e1778. doi:10.7717/peerj.1778. ISSN 2167-8359. PMC 4860341. PMID 27162705.
^Cite error: The named reference :1 was invoked but never defined (see the help page).
Tarjadia is an extinct genus of erpetosuchid pseudosuchian, distantly related to modern crocodilians. It is known from a single species, T. ruthae, first...
The Uka Tarsadia University is a Private University located in Bardoli, Surat, Gujarat, India. It was established by Tushar Patel and B.U. Patel, founders...
to Doswellia. New specimens of Tarjadia described in 2017 provided a phylogenetic analysis that argued that Tarjadia and Archeopelta were not doswellids...
the faunistic composition of the latest Middle–?earliest Late Triassic Tarjadia Assemblage Zone". The Anatomical Record. doi:10.1002/ar.25388. Abdala,...
mammals). A study on the anatomy of the skull and on the neurology of Tarjadia ruthae is published by Desojo et al. (2024). Redescription of the skeletal...
Archeopelta arborensis and Pagosvenator candelariensis from Brazil and Tarjadia ruthae from Argentina. Erpetosuchids were lithe but well-armored carnivorous...
the faunistic composition of the latest Middle–?earliest Late Triassic Tarjadia Assemblage Zone". The Anatomical Record. 307 (4): 818–850. doi:10.1002/ar...
carrolli late Ladinian? - earliest Carnian? Argentina Chañares Formation (Tarjadia Assemblage Zone) A stenaulorhynchine. Eohyosaurus E. wolvaardti early Anisian...
Dinodontosaurus Assemblage Zone shares many faunal similarities with the Argentinian Tarjadia Assemblage Zone, the dinosauromorph-bearing units of the Tanzanian Lifua...
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