Gorgosaurus libratus

Currie, P. J., 1987, Theropods of the Judith River Formation of dinosaur Provincial Park, Alberta, Canada, Fourth Symposium on Mesozoic Terrestrial Ecosystems, Drumheller, Alberta: Tyrrell Museum of Paleontology, pp. 51-60: 55

publication ID

http://doi.org/10.5281/zenodo.3676391

DOI

http://doi.org/10.5281/zenodo.3681407

persistent identifier

http://treatment.plazi.org/id/03EBA441-FF98-8449-C7FD-FE28F1EDD268

treatment provided by

Jeremy

scientific name

Gorgosaurus libratus
status

 

Gorgosaurus libratus  

frontals are characterized by the presence of a prefrontal socket, the reduction of the orbital rim to a notch, and the retention of a relatively short (rostrocaudally), overlapping suture for the postorbital ( Fig. 1g View FIG. 1 ). immature frontals of Gorgosaurus libratus   can be distinguished from that of cf. Aublysodon   by their relatively greater thickness and width for a given length. in Daspletosaurus torosus   , the shape of the frontal has been changed by the enlargement of the lacrimal and postorbital, causing an increase in the posterior width of the frontal ( Fig. 1h View FIG. 1 ), and a lengthening of the postorbital suture.