Genus: Yabeinosaurus ENDO & SHIKAMA, 1942
Etymology:

Species: tenuis ENDO & SHIKAMA, 1942
Etymology:

Holotype: Cent. Nat. Mus. Manchoukuo, Reg. No. 3735

Locality: Pale grey to pale green shale at Zaocishan (Tsaotzushan), 21 km southwest of Ihsien, Yixian, Liaoning (Chinchou) Province, China.

Horizon: Zaocishan (Tsaotzushan) Formation (Yixian Formation).

Biostratigraphy:

Age: Late Jurassic.

Material: Skull and skeleton.

Note: Now lost (EVANS, WANG & LI, 2005)

Neotype: YFM R002

Locality: Jingangshan Locality, Yixian County, Liaoning Province, China.

Horizon: Jingangshan bed, Yixian Formation.

Biostratigraphy:

Horizon: Early Cretaceous.

Material: Skull and skeleton.

Referred material:

EVANS, WANG & LI, 2005

IVPP V12641: Juvenile skeleton.
Note: Scale impression on the tail and left hind limb.

IVPP V13272a, b: A large immature specimen.
Note: Scale impression on the tail and left hind limb.

IVPP V13284: A small immature skeleton.

IVPP V13285: Adult or subadult skull and left forelimb.

EVANS & WANG, 2012

IVPP V 16361, 16362: Skulls and skeletons.

 

WANG & EVANS, 2011

Locality: Jianchang County, Liaoning Province, China.

Horizon: Jiufotang Formation.

Biostatigraphy:

Age: Early Cretaceous.

Material:

IVPP V 18005: Skull and skeleton lacking tail and most of hind limbs.

Note: Has 15 late embryos indicating viviparity.

WU, 2002

Locality: Sihetun, Shangyuan, Beipiao City, Liaoning Province, China.

Horizon: Horizon 1, Lower part of the Yixian Formation, Jehol Group.

Biostratigraphy: Psittacosaurus Fauna, Confuciusornis Avifauna.

Age: Valanginian Stage, Upper Neocomian Subepoch, Early Early Cretaceous Epoch, Early Cretaceous.

Material:

Number: Not given: Nearly complete specimen.

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Species: youngi HOFFSTETTER, 1964
Etymology:

Holotype: IVPAS V961

Locality: Ketzutung, along the Chin-chou-Chenteh railroad, Lingyuan Hsien, Liaoning Province, China.

Horizon:

Biostratigraphy:

Age: Late Jurassic or Early Cretaceous.

Material: Fragmentary skull and fragmentary skeleton.