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Yangchuanosaurus is an extinct genus of ... (1983) differentiated these species primarily on the basis of size. In ... There was a bony ridge on its nose and ...
Sinraptor hepingensis, formerly referred to Yangchuanosaurus, is a second species referred to this genus. [1] However, the identity of this species within Sinraptor is questioned by other paleontologists, [7] [8] and the describers of Alpkarakush included this species within Yangchuanosaurus based on their phylogenetic analysis in 2024. [9]
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In 1832, Jonathan the Seychelles giant tortoise (Aldabrachelys gigantea hololissa) was born. Although his exact birthdate is unknown, he has been given the official birthday of December 4, 1832.
The family is split into two subgroups: Metriacanthosaurinae, which includes dinosaurs closely related to Metriacanthosaurus, and another group composed of the close relatives of Yangchuanosaurus. Metriacanthosaurids are considered carnosaurs, belonging to the Allosauroidea superfamily. The group includes species of large range in body size.
Known from a single femur of immense size Fusuisaurus: 2006 Xinlong Formation (Early Cretaceous, Aptian to Albian) China: A referred humerus may support an extremely large size for this taxon [47] Gallimimus: 1972 Nemegt Formation (Late Cretaceous, Maastrichtian) Mongolia: Had a relatively long beak with a rounded tip Gandititan: 2024
The individual itself was below the average size for Allosaurus fragilis, [36] as it was a subadult estimated at only 87% grown. [38] The specimen was described by Breithaupt in 1996. [ 34 ] Nineteen of its bones were broken or showed signs of serious infection, which may have contributed to "Big Al's" death.
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