Clamorosaurus Gubin, 1983

Werneburg, Ralf & Witzmann, Florian, 2024, The last eryopids: Clamorosaurus and Syndyodosuchus from the late Kungurian (Cisuralian, Permian) of Russia revisited, Fossil Record 27 (3), pp. 353-380 : 353-380

Clamorosaurus Gubin, 1983

Types species.

Clamorosaurus nocturnus Gubin, 1983 .

Diagnosis.

Synapomorphy: (1) Very wide interpterygoid vacuities, with the orbitae not obscured in ventral view, in contrast to all other eryopids and shared with the stereospondylomorph Intasuchus ( Konzhukova 1956; Werneburg et al. 2020), however, in contrast to Intasuchus , the interpterygoid vacuities of Clamorosaurus are unique in being anteriorly widened.

Characters shared with certain eryopids: (2) Premaxillary snout region laterally constricted at the level of the external naris, shared with Eryops and Osteophorus ; (3) Skull very wide, shared with Onchiodon ; (4) Fangs on the vomer located on two separate circular tooth pits, one medial to the anterior edge of the choanae and one medial to the choana at its midlength. Shared with Syndyodosuchus .