Trioracodon
Trioracodon
Extinct family of mammals
Trioracodon is an extinct genus of Late Jurassic to Early Cretaceous eutriconodont mammal found in North America and the British Isles. It was named in 1928[1]
T. bisulcus is known from the Morrison Formation, where it is present in stratigraphic zone 5,[2] and three other species from the Purbeck Group in Dorset.[3]