Sinophoneus

Sinophoneus is an extinct genus of dinocephalian therapsids in the family Anteosauridae. A single fossilized skull (GMV 1601) has been found from the Middle Permian Xidagou Formation of China.[1]

Sinophoneus
Temporal range: Middle Permian,
Skull, Paleozoological Museum of China
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Clade: Therapsida
Suborder: †Dinocephalia
Family: †Anteosauridae
Subfamily: †Anteosaurinae
Genus: †Sinophoneus
Cheng and Ji, 1996
Species:
†S. yumenensis
Binomial name
†Sinophoneus yumenensis
Cheng and Ji, 1996
Synonyms
  • Stenocybus acidentatus Cheng and Li, 1997

Description
Restoration of Sinophoneus based on IGCAGS V 361, originally classified as Stenocybus acidentatus
Restoration of Sinophoneus yumenensis

Sinophoneus is characterized by a wide snout and by a ridge that runs along the midline of the skull between the eye sockets. The anteosaur Stenocybus acidentatus has also been named from the Xidagou Formation on the basis of a skull (IGCAGS V 361) and fragmentary jaw bones, but likely represents a juvenile form of Sinophoneus. Juvenile features include its smaller size, larger eye sockets and taller skull. Both GMV 1601 and IGCAGS V 361 have large rounded snouts, distinguishing them from most other anteosaurs and suggesting that they are closely related.[2]

References
  1. "Dolichorhynchops - Facts and Pictures". 12 October 2016.
  2. Kammerer, C.F. (2011). "Systematics of the Anteosauria (Therapsida: Dinocephalia)". Journal of Systematic Palaeontology. 9 (2): 261–304. doi:10.1080/14772019.2010.492645. S2CID 84799772.


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