Digital painting of Ulemosaurus svijagensis by Nobu Tamura.
Only several partial skeletons and skulls have been found. Ulemosaurus grew to 4-5 meters in length and weighed up to one ton.[2] The skull bones are extremely dense: about 10 centimetres (4 in) at its thickest. This thickening is possibly related to head-butting behavior, as some researchers suggest. The species is considered a herbivore, but because the mandible is heavily constructed some palaeontologists consider it a carnivore, with the species being able to use muscle power to cut prey up with its incisors.
Classification
Ulemosaurus is a large Moschops-like form from Russia; it is probably similar enough to be included as a separate species of Moschops. Despite its advanced characteristics, it lived slightly before the Karoo forms, showing that the Moschopines, and indeed the Tapinocephalidae in general, had already attained their acme by early Capitanian time.
Vickers-Rich, Patricia; Rich, Thomas H. (1993). The Great Russian Dinosaurs. Clayton: Monash Science Centre. p. 35. ISBN978-0-7326-0503-2.
Riabinin, A. N., 1938. Vertebrate fauna from the Upper Permian deposits of the Sviaga basin: 1. A new Dinocephalian, Ulemosaurus sviagensi n. gen. n. sp: Ezheg. Muz. Akad. F. N. Chernysheva, v. 1, p. 4–40.
