The surangular or suprangular is a jaw bone found in most land vertebrates, except mammals. Usually in the back of the jaw, on the upper edge, it is connected...

contains a single species, I. severnensis. It is known from two fragmentary surangular bones of the lower jaw, discovered in separate places in 2016 and 2020...

an infection in the right upper jaw and there are bite traces in the surangular of the left lower jaw. This may have been caused by a male T. rex during...

located on the lingual side (closest to the tongue) between the angular and surangular. Romer, A. S. (1956). Osteology of the Reptiles. 772 pp. Chicago & London...

surface. On its posterior end, it meet the surangular. It had a small hole near its posterior end, called surangular foramen or fenestra. Both bones were the...

combination of a kinked suture between the angular and the surangular, and the basal trait of the surangular reaching the rear jaw edge. The rather small foramen...

parietals, and the lower jaws are limited to their upper rear bones, the surangulars and articulars. A fifth specimen is MOR 456.1, a subadult. None of the...

from the Aptian. It consists of a rear right lower jaw including the surangular, prearticular and articular. Further material referred to S. suwati includes...

the proposed neotype of P. brachyspondylus, the dorsal surface of the surangular lacks any fossa, and in contrast to all other specimens of Pliosaurus...

the braincase, while the lower jaw bones (dentary, splenial, angular, surangular, and articular) have been fused together into a unit called the mandible...