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Temporal range: Middle Triassic, 240–230 Ma
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
(unranked): Crurotarsi
Order: Rauisuchia
Family: Rauisuchidae
Genus: Rauisuchus
Species: R. tiradentes
Binomial name
Rauisuchus tiradentes
Huene, 1942

Rauisuchus tiradentes'' is an extinct basal archosaur which lived in what is now the Geopark of Paleorrota, Brazil, during the middle Triassic period (240-230 million years ago). Named after fossil collector Dr. Wilhelm Rau, Rauisuchus belonged to a group of land-dwelling relatives to crocodiles. These reptiles were among the top predators of their day, eating other reptiles for food and maybe hunting early dinosaurs.

Rauisuchus grew to a length of 4 m and was 90 cm high at the hips. It had a weight of around 250 kg.


  • Holtz, Thomas; Brett-Surman, Michael (2001). Jurassic Park Institute: Dinosaur Field Guide. Random House. ISBN 0-375-81293-8. 

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