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Dinosaur Park Formation, including two complete skulls of Gorgosaurus and an isolated postorbital of Daspletosaurus , reveals new information on the anatomy and ontogeny of tyrannosaurids.
This paper is based mostly on recent studies of the skull anatomy of North American tyrannosaurids (Currie 2003), and ofAsian tyrannosaurids (Hurum and Sabath 2003); more detailed anatomical data are given in these two papers.
Here, we describe two small, articulated Gorgosaurus specimens (skull lengths of ca. 500 mm) that help advance our knowledge of the anatomy and ontogeny of this taxon and of tyrannosaurids in...
Albertosaurus and Gorgosaurus share proportionally longer and lower skulls than Daspletosaurus and other tyrannosaurids. The end of the snout was blunt, and the nasal and parietal bones were fused along the midline of the skull, as in all other members of the family.
saur skulls where both skull and jaw lengths are known). ThesmallskullofDaspletosaurus sp.(TMP94.143.1)is about 620mmlong between thepremaxilla and quadrate. Small, juvenile skulls are known for two other tyranno− saurids—that of Nanotyrannus lancensis (CM 7541) is 575mmlong(premaxillatooccipitalcondyle)andthatof
1 cze 2003 · Here, we describe two small, articulated Gorgosaurus specimens (skull lengths of ca. 500 mm) that help advance our knowledge of the anatomy and ontogeny of this taxon and of tyrannosaurids in...
11 lut 2022 · Thus, the long and gracile skull shape of Qianzhousaurus (and Alioramus) manifests itself in the posterior part of the lower jaw, despite the fact that the posterior part of the upper skull (jugal, postorbital, quadratojugal, squamosal) is not elongated anteroposteriorly.
