Dagasuchus

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Dagasuchus
Temporal range: Middle Triassic, 235 Ma
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Loricata
Genus: Dagasuchus
Lacerda et al., 2015
Type species
Dagasuchus santacruzensis
Lacerda et al., 2015

Dagasuchus is an extinct genus of pseudosuchian archosaur from the Middle Triassic of Rio Grande do Sul, Brazil, represented by the type species Dagasuchus santacruzensis. D. santacruzensis was named in 2015 on the basis of a partial hip (one illium and a pair of ischia) found in an exposure of the Santa Maria Formation near the city of Santa Cruz do Sul. Dagausuchus is an early member of a large evolutionary group called Loricata, which originated in the Triassic and includes modern crocodylians and their ancestors. Features of its hip closely resemble those of other early loricatans such as Stagonosuchus and Saurosuchus. Dagasuchus is notable for being the first loricatan found in the Santacruzodon assemblage zone of the Santa Maria Formation; previously loricatans were only known from the older Dinodontosaurus assemblage zone and the younger Hyperodapedon assemblage zone within the Santa Maria Formation, meaning that Dagasuchus fills in a gap in the fossil record of the group.[1]

References[edit]

  1. ^ Lacerda, M. B.; Schultz, C. L.; Bertoni-Machado, C. (2015). "First 'Rauisuchian' archosaur (Pseudosuchia, Loricata) for the Middle Triassic Santacruzodon Assemblage Zone (Santa Maria Supersequence), Rio Grande do Sul State, Brazil". PLoS ONE. 10 (2): e0118563. doi:10.1371/journal.pone.0118563. PMC 4340915. PMID 25714091.