Mambawakale ruhuhu: A new species of Pseudosuchian Archosaur from the Middle Triassic Manda Beds of Tanzania.
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The Archosaurs, the group which includes modern Birds and Crocodiles, as well as the extinct non-Avian Dinosaurs and Pterosaurs, appeared in the Early Triassic and underwent a major evolutionary radiation in the Middle Triassic, becoming the dominant group of terrestrial Vertebrates. One of the most important sources of Middle Triassic Archosaur fossils is the Manda Beds of the Ruhuhu Basin, in southwest Tanzania, which is thought to be Anisian in age (247.2-242 million years old), and therefore documents the early stages of the Archosaur radiation.