A new metriacanthosaurid theropod dinosaur from the Middle Jurassic of Yunnan Province, China DOI Creative Commons
Yi Zou, Li Chen, Tao Wang

et al.

PeerJ, Journal Year: 2025, Volume and Issue: 13, P. e19218 - e19218

Published: April 2, 2025

Metriacanthosaurid theropods represent a basal-branching lineage of tetanurans. Members this clade are mainly medium to large-sized and lived in Laurasia during the Middle Jurassic Early Cretaceous. In clade, Sinraptor dongi , hepingensis Yangchuanosarus shangyouensis from Late well represented by nearly complete specimens, but incompleteness taxa hinders our knowledge origin early evolution Metriacanthosauridae. This paper describes new genus species metriacanthosaurids, Yuanmouraptor jinshajiangensis gen. et sp. nov, Zhanghe Formation Yunnan Province, China. The taxon is cranium anterior section vertebral column including cervical series first dorsal vertebra. can be diagnosed based on following autapomorphies: process postorbital sheet-shaped keeping consistent depth; ventral ramus bearing laterally twisted trough running along its lateral surface; surface axial intercentrum parallel with that centrum; discontinuity inclination anterodorsal margin third fourth vertebrae; strongly posteriorly elongated epipophyses deeply excavated pneumatic foramina vertebra; subrectangular neural spines posterior vertebrae. Phylogenetic analysis recovers as most member within Metriacanthosauridae provides alternative phylogenetic topology non-coelurosaurian

Language: Английский

Isolated theropod teeth from the Upper Jurassic to Lower Cretaceous Khorat Group: Implications for theropod diversity in Thailand DOI

Wongwech Chowchuvech,

Sita Manitkoon,

Phornphen Chanthasit

et al.

Cretaceous Research, Journal Year: 2025, Volume and Issue: unknown, P. 106147 - 106147

Published: April 1, 2025

Language: Английский

Citations

0
A new metriacanthosaurid theropod dinosaur from the Middle Jurassic of Yunnan Province, China DOI Creative Commons
Yi Zou, Li Chen, Tao Wang

et al.

PeerJ, Journal Year: 2025, Volume and Issue: 13, P. e19218 - e19218

Published: April 2, 2025

Metriacanthosaurid theropods represent a basal-branching lineage of tetanurans. Members this clade are mainly medium to large-sized and lived in Laurasia during the Middle Jurassic Early Cretaceous. In clade, Sinraptor dongi , hepingensis Yangchuanosarus shangyouensis from Late well represented by nearly complete specimens, but incompleteness taxa hinders our knowledge origin early evolution Metriacanthosauridae. This paper describes new genus species metriacanthosaurids, Yuanmouraptor jinshajiangensis gen. et sp. nov, Zhanghe Formation Yunnan Province, China. The taxon is cranium anterior section vertebral column including cervical series first dorsal vertebra. can be diagnosed based on following autapomorphies: process postorbital sheet-shaped keeping consistent depth; ventral ramus bearing laterally twisted trough running along its lateral surface; surface axial intercentrum parallel with that centrum; discontinuity inclination anterodorsal margin third fourth vertebrae; strongly posteriorly elongated epipophyses deeply excavated pneumatic foramina vertebra; subrectangular neural spines posterior vertebrae. Phylogenetic analysis recovers as most member within Metriacanthosauridae provides alternative phylogenetic topology non-coelurosaurian

Language: Английский

Citations

0