Species: yumenensis HOU & LIU, 1984
Etymology: In reference to the Yumen Municipality, in the Gansu Province, China, where the specimen was found.

Holotype: IVPP V 6862

Locality: Northwest of the village of Chenjiawan, Changma Prefecture,Yumen Municipality, Kansu (Gansu) Province, China.

Horizon: Middle Xiagou Formation.

Biostratigraphy:

Age: Aptian-Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: Left tibiotarsus, a left tarsometatarsus with four complete digits.

Referred material:

LI, ZHANG, ZHOU, LI, LIU, & WANG, 2011

IVPP V 15076: Furcula and sternum.

IVPP V 1509, 15075, 15081: Fore limbs.

IVPP V 15080, 15074, 15077, 15083, 15084: Hind limb elements with skin between the toes.

WANG, O'CONNOR, LI, & YOU, 2015

GSGM-04-CM-018: Articulated left tibiotarsus and fibula.

GSGM04-CM-031: Proximal and disal portions of left tarsometatarsus.

GSGM-05-CM-014: Complete left and partial right forelimbs, completehind limbs, scattered ribs anf gastroliths.

GSGM-06-CM-011: Nearly complete sternum, sternal ribs, partial furcula, sternal ribs and gastroliths.

GSGM-07-CM-009: Articulated three caudalmost htoracic vertebrae, synacrum, pygostyle and partial pelvic girdle consisting of right ilium, proximal pubis and ischium.

GSGM-07-CM-006: Left proximal scapula, coracoid and partial left forelimb, with feather impressions.

GSGM-07-CM-011: Articulated skeleton and gastrolithis, lacking the skull, cervical and caudal vertebrae, pectoral girdles and forelimbs.

YOU, LAMANNA, HARRIS, CHIAPPE, O'CONNOR, JI, LU, YUAN, LI, ZHANG, LACOVARA, DODSON & JI, 2006

CAGS-IG-04-CM-001: Partial right and left pelvic limbs.

CAGS-IG-04-CM-002: Articulated caudal cervical, thoraicc, synsacral, and caudal vertebrae, pelvic girdle, and partial pelvic limbs.

CAGS-IG-04-CM-003: Proximal tarsometatarsus.

CAGS-IG-04-CM-004: Nearly complete skeleton lacking cranium, cranial-midcervical vertebrae and both pelvic limbs.
Note: Has feathers on thoracic limbs.

CAGS-IG-04-CM-008: Partial pelvic limbs with soft-tissue preservation.
Note: Tubercular soft tissue preserved around toes.

BARDEN, WOGELIUS, LI, MANNING, EDWARDS & van DONGEN, 2011

MGSF317, 318: Two feathers.

 

= cf. Gansus yumenensis O’CONNOR, STIDHAM, HARRIS, LAMANNA, BAILLEUL, HU, WANG & YOU, 2022

Locality: Changman township, Yuman City, Jiuquan area, , Changma Prefecture,Yumen Municipality, northwestern Kansu (Gansu) Province, China.

Horizon: Xiagou Formation.

Biostratigraphy:

Age: Lower Aptian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material:

IVPP V26199: Nearly complete skull, ventrally exposed, in articulation with the most cranial 3 cervical vertebrae.

Note: numerous associated featehrs are preserved both around teh skull and in large patches nearby.

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