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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
Huene, 1942
  • R. tiradentes Huene, 1942 (type)

Rauisuchus was a 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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