Genus: Yunnanosaurus YOUNG, 1942
Etymology: In reference to the Yunnan Province, China, and Greek, sauros, lizard: “Yunnan lizard”.
= Yuannanosaurus YOUNG, 1982 (sic)

Species: huangi YOUNG, 1942
Etymology: In reference to the village of Huangchiatien.

Holotype: NGMJ 004546 (old JGMM V20)

Locality: In the vicinity of the village Huangchiatien, about 4 km NE of Lufeng city, Lufeng County, Yunnan Province, China.

Horizon: Dark Red Beds, Lower Lufeng Formation.

Biostratigraphy:

Age: Hettangian-Pliensbachian Stage, Middle Lias Epoch, Early Jurassic.

Material: Skull and lower jaws, 4 anterior cervicals, including the pro-atlas and atlas, anterior dorsal or at least last cervical, 8 posterior dorsals, sacrum and 8 caudal vertebrae, a few ribs and chevrons, left scapula, both sternals, humeri, left ulna and nearly complete manus, ilia, pubes, ischia, femora, tibia, fibulae, and tibiale, metatarsal II and metatarsal IV of the left side.

Referred material:

IVPP V54: A right premaxilla and lower jaw.

IVPP V47: A broken dorsal vertebra? right metacarpal II, a manus ungual, a right astragalus, right cunieforms III and IV, a proximal part of left metatarsals IV, 2 phalanges and 2 unguals.

IVPP V6: Metacarpals II-III and phalanges II, 1-2 and III and 1 and 2 unguals.

No. 62: Left metacarpal III.

IVPP V63: Distal part of the right metatarsal IV and first phalanx.

 


HU, 1961

Locality: Lufeng, Yunnan Province, China.

Horizon: Lufeng Formation.

Biostratigraphy:

Age: Hettangian-Pliensbachian Stage, Middle Lias Epoch, Early Jurassic.

Material:

Number: Not given: Fragmentary skull and dentary.

 

HU, 1991

Locality: Xiyang Village, Jinning County, Yunnan Province, China.

Horizon: Lower Lufeng Formation.

Biostratigraphy:

Age: Early Jurassic.

Material:

Number: Not given: Skull and skeleton.

Note: Found with Dilophosaurus sineneis, in combat?

 

SIMMONS, 1965

Locality: Unknown, Lufeng Basin, Yunnan Province, China.

Horizon: Lower Lufeng Series.

Biostratigraphy:

Age: Early Jurassic.

Material:

FMNH (CUP) 2039: 6 or 7th cervical vertebra.

 

Locality: Hei Koa Peng, Lufeng Basin, Yunnan Province, China.

Horizon: Lower Lufeng Formation, Dark Red Beds.

Biostratigraphy:

Age: Hettangian-Pliensbachian Stage, Middle Lias Epoch, Early Jurassic.

Material:

FMNH (CUP) 2030: Left first metacarpal.

FMNH (CUP) 2031: Proximal end of a left femur.

FMNH (CUP) 2032: Proximal end of left fibula.

 


Locality: Ta Ti, Lufeng Basin, near K'un-ming, Yunnan Province, China.

Horizon: Lufeng Formation.

Biostratigraphy:

Age: Hettangian-Pliensbachian Stage, Middle Lias Epoch, Early Jurassic.

Material:

FMNH (CUP) 2033: Distal end of left femur.

FMNH (CUP) 2034: Third and fifth metacarpals.

FMNH (CUP) 2035: Proximal end of right fibula.

FMNH (CUP) 2101: Distal ends of two fibulae.

FMNH (CUP) 2036: Two centra, caudal vertebrae.

FMNH (CUP) 2037: Skull and jaws, of a nearly complete juvenile.

FMNH (CUP) 2038: Maxillary and mandibular fragments.

 

YOUNG, 1942

Locality: Shawan Site, Lufeng, Yunnan Province, China.

Horizon:

Biostratigraphy:

Age: Early Jurassic.

Material:

IVPP V32: Left femur.

 


Locality: Tachung, Lufeng, Yunnan Province, China.

Horizon:

Biostratigraphy:

Age: Early Jurassic.

Material:

IVPP V57: Left astragalus and a distal end of an ischium.

IVPP V60: Ischia.

IVPP V272: Proximal part of left humerus and a distal of a right femur.

 

YOUNG, 1951

Locality: Huangchiatien, Lufeng, Yunnan Province, China.

Horizon: Lufeng Formation.

Biostratigraphy:

Age: Hettangian-Pliensbachian Stage, Middle Lias Epoch, Early Jurassic.

Material:

IVPP V96: 6 dorsal vertebrae and 1 anterior caudal vertebra.

IVPP V264: Left proximal part of humerus.

 


Locality: Yaochan, Lufeng, Yunnan Province, China.

Horizon: Lufeng Formation.

Biostratigraphy:

Age: Hettangian-Pliensbachian Stage, Middle Lias Epoch, Early Jurassic.

Material:

Number: Not given: A right sacral rib of sacrum I.

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Species: robustus YOUNG, 1951
Etymology:
= Yunnanosaurus robustas YOUNG, 1951 (sic)

Holotype: IVPP V93

Locality: Dahuangton (Huangchiatien), Lufeng, Yunnan Province, China.

Horizon: Dark Red Beds, Lower Lufeng Formation.

Biostratigraphy:

Age: Sinemurian-Pliensbachian Stage, Middle Lias Epoch, Early Jurassic.

Material: Fragments of various parts of the skull, cervical and dorsal vertebrae, sacrum and caudal vertebrae, fragments of scapula and coracoids, sterna, humeri, ulna and right hand, posterior part of left pelvic girdle and most of both limbs.

Referred material:

IVPP V94: Basioccipital, right premaxilla together with a maxilla, probably a left maxilla and some other fragments of the skull and a large lower jaw, about 26 upper and lower isolated teeth, 3 cervicals, 9 dorsals, complete sacrum and 22 mostly consecutive caudal vertebrae, many fragments of limb-bones.

IVPP V39: Upper tooth.

 


Locality: Tachung and Putsawan, Lufeng, Yunnan Province, China.

Horizon: Dull Purplish Beds of Lower Lufeng Formation.

Biostratigraphy:

Age: Early Jurassic.

Material:

IVPP V505: Anterior part of the snout with part of the left dental and many teeth.

 


Locality: Erhchuanshan, Lufeng, Yunnan Province, China.

Horizon: Dark Red Beds of the Upper Lufeng Formation.

Biostratigraphy:

Age: Early Jurassic.

Material:

IVPP V69: Proximal end of radius, ischium and Mt. IV.

 


Locality: Unknown, Yunnan Provinc, China.

Horizon: Dark Red Beds, Lower Lufeng Formation.

Biostratigraphy:

Age: Early Jurassic.

Material:

FMNH (CUP) 2040: ?18th caudal vertebral centrum.

 


Locality: Ta Ti, Lufeng Basin, near K'un-ming, Yunnan Province, China.

Horizon: Dark Red Beds, Lower Lufeng Formation.

Biostratigraphy:

Age: Sinemurian-Pliensbachian Stage, Middle Lias Epoch, Early Jurassic.

Material:

FMNH (CUP) 2041: 2 dorsal vertebrae (7th or 8th?)

FMNH (CUP) 2043: Right maxillary.

FMNH (CUP) 2102: Ilium.

 


Locality: Hei Koa Peng, China.

Horizon: Lufeng Formation.

Biostratigraphy:

Age: Early Jurassic.

Material:

FMNH (CUP) 2046: Vertebral centrum.

FMNH (CUP) 2047: Tooth fragments.

FMNH (CUP) 2048: Claw fragments.

FMNH (CUP) 2049: Centrum, sixth or seventh dorsal vertebra.

FMNH (CUP) 2044, 2045: Caudal vertebrae, 2.

 

SEKIYA, JIN, ZHENG, SHIBATA, & AZUMA, 2014

Locality: Qingxiangshu Village, Anlongbao, Shuangbai County, Ghuxiong Autonomous Prefecture, Yunnan Province, Southwestern China.

Horizon: Fengjiahe Formation, or Zhanghe Formation.

Biostratigraphy:

Age: Early or Middle Jurassic.

Material:

ZMNH-M8739: Almost complete left maxilla, anterior tip of the left jugal, ventral end of the left lachrymal, right and left dentaries and several maxillary teeth and a left dentary tooth, seven cervical centra, eight dorsal vertebrae, nine separated neural arches and numerous fragmentary dorsal ribs, three sacral centra, unfused theree neural arches, and sacral ribs 39 caudal vertebrae and several chevrons, part of left and right scapulae, and coracoids, complete left and right humeri, parts of left and right ulnae and radii, incomplete carpal bones and manual phalanges, almost complete right ischium, complete femora, tibiae, fibula, and left adn right astragali, and almost complete both left adn right pes.

YOUNG, 1947

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

IVPP V42: 3 jaw fragments.
Note: Referred to Lufengosaurus magnus.

IVPP V56: Tooth.
Note: Referred to Lufengosaurus magnus.

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Species: youngi ZHAO, LI, ZHONG, AZUMA, FUJITA, DONG & JI, 2007
Etymology: In honor of Professor Young, C. C., a distinguished paleontologist who was the first to study the dinosaurs from the Lufeng Basin and erected the family Yuannosauridae in 1942.

Holotype: CZMVZA 185

Locality: Banqing Houshanliangzi, Jiangyi, Yuanmou County, Yunnan Province, China.

Horizon: Zhanghe Formation.

Biostratigraphy:

Age: Middle Jurassic.

Material: A partial complete skeleton without skull, pectoral girdle, forelimb, and hind limb.