page_title: Decuriasuchus
section_title: Classification
hierarchical_section_title: Decuriasuchus / Classification
caption_attribution_description: Português: Decuriasuchus no Museu de Ciências Naturais da Fundação Zoobotânica do Rio Grande do Sul (Paleorro)
context_page_description: Decuriasuchus is an extinct genus of loricatan from the Middle Triassic period. It is a carnivorous archosaur that lived in what is now southern Brazil, in Paleorrota. It was first named by Marco Aurélio G. França, Jorge Ferigolo and Max C. Langer in 2011 and the type species is Decuriasuchus quartacolonia. The generic name means "legion of ten crocodile" in Greek in reference to the ten known specimens and the animal's possible group behavior. The specific name refers to the Quarta Colonia region where the fossils were collected.
context_section_description: Decuriasuchus is closely related to the genera Prestosuchus and Batrachotomus. An initial phylogenetic study of the genus placed it in the family Prestosuchidae, but found the group "Rauisuchia" to be paraphyletic. The study was based on an earlier 2010 analysis of archosaurs. A later study involved adding Decuriasuchus to a 2011 analysis of archosaur relationships; D. quartacolonia was recovered as the basalmost member of the clade Loricata (the most inclusive clade containing Crocodylus niloticus but not Poposaurus gracilis, Ornithosuchus longidens or Aetosaurus ferratus), with Ticinosuchus as the next most primitive taxon. As a rauisuchian, Decuriasuchus is a distant relative of modern crocodilians.
caption: Decuriasuchus at Museu de Ciências Naturais da Fundação Zoobotânica
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