Genus: Sinophoneus CHENG & JI, 1996
Etymology: Greek, ‘sino’, the ancient name of China, Greek, phoneus, “kiling, hunting”: China hunter.
= Stenocybus CHENG & LI, 1997
Etymology: Greek, steno, “narrow”, and Greek, cyb, “skull”.

Species: yumenensis CHENG & JI, 1996
Etymology: In reference to Yumen, the locality were the specimen was found.

Holotype: Geological Museum of China, Beijing, Cat. No. GMV1601

Locality: Dashankou, Yumen, western Gansu (Kansu) Province, northwestern China.

Horizon; Upper part of Xidagou Formation.

Biostratigraphy: Biseridens Assemblage.

Age: Middle Permian.

Material: Nearly complete skull.

Referred material:

LIU, 2013

IVPP V18120: A slightly distorted skull with lower jaws and some postcranial elements.

IVPP V18117-18119, 18121-18123: 6 skulls wiht lower jaws.

IVPP V18124: A nearly complete right dentary with 20 teeth.

IVPP V18125: An incomplete left dentary with 14 teeth.

IVPP V18126: An incomplete left maxilla with teeth.

IVPP V18127: 8 continous presacral vertebrae and ribs.

 

= Stenocybus acidentatus CHENG & LI, 1997
Etymology: Greek, acidentatus, “sharp – pointed teeth”.

Holotype: IGCAGS V 361

Locality: Dashankou, Yumen, Gansu (Kansu) Province, China.

Horizon: Xidagou Formation.

Biostratigraphy: Biseridens Assemblage.

Age: Middle Permian.

Material: A slightly damaged skull associated with almost complete lower jaws.

Paratype: IVPP V12008: A right premaxilla, maxilla and dentary with complete upper and lower dentitions.