[D] Chienkosaurus ceratosauroides (2) [jG]
Describer
Young, 1942
Time
Jurassic Late Tithonian
Classification
Saurischia Theropoda Tetanurae Carnosauria ?Allosauridae
Diet
Carnivore
Fossilsite
Kuangyuan Series, China
Fall Under
Szechuanosaurus campi partim
Info
Genus
Szechuanosaurus campi (Young, 1942) > Szechuanosaurus yandonensis (Dong, Chang, Li & Zhou, 1978) > Szechuanosaurus zigongensis (Gao, 1993) Chienkosaurus ceratosauroides (2) (Young, 1942 partim)
Holotype
(IVPP V237) premaxillary tooth (37 mm) included with Szechuanosaurus campi. The remaining 3 teeth Chienkosaurus ceratosauroides (1) are probably crocodylian.
Some researchers do not think its possible to refer the theropod tooth included in the Chienkosaurus holotype to Szechuanosaurus. The Chienkosaurus tooth is never compared of Szechuanosaurus, Yangchuanosaurus shangyouensis or Sinraptor hepingensis the teeth associated with Dong\\\'s 1983 skeleton are possible shed from scavengers.
The species are roughly similar in morphology (recurved, flattened, both edges serrated), both Yangchuanosaurus shangyouensis and Sinraptor hepingensis have 24 denticles per cm, while Szechuanosaurus campi has 29 per cm. These are very similar, especially considering interdental variation, and further study must be done before they refer isolated teeth to either species.
Young, 1942
Time
Jurassic Late Tithonian
Classification
Saurischia Theropoda Tetanurae Carnosauria ?Allosauridae
Diet
Carnivore
Fossilsite
Kuangyuan Series, China
Fall Under
Szechuanosaurus campi partim
Info
Genus
Szechuanosaurus campi (Young, 1942) > Szechuanosaurus yandonensis (Dong, Chang, Li & Zhou, 1978) > Szechuanosaurus zigongensis (Gao, 1993) Chienkosaurus ceratosauroides (2) (Young, 1942 partim)
Holotype
(IVPP V237) premaxillary tooth (37 mm) included with Szechuanosaurus campi. The remaining 3 teeth Chienkosaurus ceratosauroides (1) are probably crocodylian.
Some researchers do not think its possible to refer the theropod tooth included in the Chienkosaurus holotype to Szechuanosaurus. The Chienkosaurus tooth is never compared of Szechuanosaurus, Yangchuanosaurus shangyouensis or Sinraptor hepingensis the teeth associated with Dong\\\'s 1983 skeleton are possible shed from scavengers.
The species are roughly similar in morphology (recurved, flattened, both edges serrated), both Yangchuanosaurus shangyouensis and Sinraptor hepingensis have 24 denticles per cm, while Szechuanosaurus campi has 29 per cm. These are very similar, especially considering interdental variation, and further study must be done before they refer isolated teeth to either species.