Estemmenosuchus uralensis

Estemmenosuchus had a sprawling posture and could reach a body length of more than 3 m (10 ft). Its skull was long and massive, up to 65 cm (26 in) in length,  and possessed several sets of large horns, somewhat similar to the antlers of a moose, growing upward and outward from the sides and top of the head. The animal had a sprawling posture as indicated by analysing its shoulder joints. The skull superficially resembles that of Styracocephalus, but the "horns" are formed from different bones; in Estemmenosuchus the horns are located on the frontals and protrude upward, whereas in Styracocephalus the horns are formed by the tabular and extend aft.