Eocyclotosaurus is an extinct genus of mastodonsauroid temnospondyl.

 Eocyclotosaurus was an amphibian with a thick, flat and shovel-shaped skull found in the Moenkopi Formation in New Mexico. This fish eater is closely related to metoposaurs, a group of Late Triassic amphibians. 

 Heylerosauridae is a family of mastodonsauroid temnospondyls. It was first named in 1980 to include the genera Odenwaldia and Quasicyclotosaurus. In addition to these genera, the family now includes Eocyclotosaurus and Yuanansuchus. Recent phylogenetic analyses have not found a close relationship between Odenwaldia and other heylerosaurids and place it outside the family. Heylerosaurids are generally regarded as the sister taxon of the stenotosaurids.

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Tags: Вымершие амфибии, Лабиринтодонты, Темноспондилы, Триас

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