(dawn round eared lizard).
Named By: Ortlam - 1970.
Synonyms: Moenkopisaurus, Stenotosaurus lehmani.
Classification: Chordata, Amphibia, Temnospondyli, Mastodonsauroidea, Heylerosauridae.
Species: E. woschmidti (type), E. appetolatus, E. lehmani, E. appetolatus.
Size: Skull 22 centimetres long, total body length about 1 meter long.
Known locations: England - Otter Sandstone Formation. USA, Arizona - Moenkopi Formation (Holbrook Member).
Time period: Anisian of the Triassic.
Fossil representation: At least one skull.
Eocyclotosaurus is a genus of amphibian predator that lived in both North America and the British Isles during the early Triassic. With a long snout and a mouth full of sharp teeth, Eocyclotosaurus would have hunted for fish and small amphibians in the water. Eocyclotosaurus directly translates as ‘dawn rounded eared lizard’, however this is also a reference to the similar genus Cyclotosaurus that lived later in the Triassic.
- The status and osteology of two new cyclotosaurid amphibians from the Upper Moenkopi Formation of Arizona (Amphibia: Temnospondyli; Middle Triassic). - Neues Jahrbuch für Geologie und Paläontologie Abhandlungen 216(3):387-411. - R. R. Schoch - 2000.