Species: zhaoianus XU, ZHOU & WANG, 2000
Etymology: In honor of Zhao Zijin, a distinguished dinosaurologist who introduced
the first author to the field of vertebrate paleontology.
Holotype: IVPP V 12330
Locality: Xiasanjiazi, Chaoyang County, western Liaoning Provicne, China.
Horizon: Jiufotang Formation.
Biostratigraphy:
Age: Early Cretaceous.
Material: Fragmentary skull and skeleton with ‘feather’ impressions.
Referred material:
AZUMA, 2005
Locality: Western Liaoning Province, China.
Horizon: Yixian Formation, Jehol Group.
Biostratigraphy: Psittacosaurus Fauna, Confuciusornis Avifauna.
Age: Valanginian Stage, Upper Neocomian Subepoch, Early Early Cretaceous Epoch, Early Cretaceous.
Material:
JI-5: Skull and skeleton with feather impressions.
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Species: gui XU, ZHOU, WANG, KUANG,
ZHANG & DU,
2003
Etymology: In honor of Gu Zhiwei, a distinguished paleontologist who contributed
greatly to the study fo jehol biota.
Holotype: IVPP V13352
Locality: Dapingfang, 30 km southwest of Chaoyang City, Chaoyang County, Western
Liaoning Province, China.
Horizon: Jiufotang Formation.
Biostratigraphy:
Age: Early Cretaceous.
Material: Skull missing snout, fragmentary skeleton with feather impressions
on wings, legs, tail and body.
Note: 4-winged dromaeosaur.
Referred material:
IVPP V13320, V13351, TNP00996: Nearl y complete specimen with feather impressons.
Locality: Shangheshou, 3 km northwest of Chaoyang City, Liaoning Province, China.
Horizon: Horizon IV, Jiufotang Formation, Upper Jehol Group.
Biostratigraphy: Psittacosaurus fauna, Cathayornis-Chaoyanga Avifauna.
Age: Barremian Stage, Lower Gallic Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.
Material:
IVPP V13476, IVPP V 13477: Fragmentary specimens with feather impressions.
XING, PERSONS IV, BELL, XU, ZHANG, MIYASHITA, WANG & CURRIE, 2013
Locality: Liaoning Province, Northeastern China.
Horizon: Jiufotang Formation, Upper Jehol Group.
Biostratigraphy:
Age: Barremian Stage, Lower Gallic Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.
Material:
QMV1002: Nearly complete specimen, skull, and skeleton, with feather impressions.
Note: With a pair of fish vertebral centra and thing bones with rugose surface textures and evidence of gastric etiching, possibly fish cranial elements.
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Species: hanqingi GONG, MARTIN, BURNHAM, FALK, & HOU, 2012
Etymology: In honor of the late Marshall Zhang Xueliang who was the founder,
president, and later Honorary President of Northeastern University, China: Hanqing
is his alternate name.
Holotype: LVH 0026
Locality: Liaoning Province, Northeastern China.
Horizon: Jiufotang Formation, Upper Jehol Group.
Biostratigraphy:
Age: Barremian Stage, Lower Gallic Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.
Material: Skull and skeleton of a nearly complete specimen.
Note: With feather impressions.
CHOTARD, WANG, ZHENG, KAYE, GROSMOUGIN, BARLOW, KUNDRAT, DECECCHI, HABIB, ZARIWALA, HARTMAN, XU & PITTMAN, 2025
Locality: Jianchang, Jianchang County, Liaoning Province, northeastern China.
Horizon: Jiufotang Formation.
Biostratigraphy:
Age: Early Cretaceous.
Material:
STM5-4, 5-5, 5-9, 5-75, 5-93, 5-109, 5-142, 5-150, 5-172, 5-221, 6-86, 6-62: Fragmentary specimens with hind leg feathers.
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LI, GAO, MENG, CLARKE, SHAWKEY, D'ALBA, PEI, ELLISON, NORELL, & VINTHER, 2012
Locality: Lamadong, Jianchang County, Western Liaoning Province, China.
Horizon:
Biostratigraphy:
Age: Early Cretaceous.
Material:
BMNHC PH881: Skull and nearly complete
Note: With feathers on wings, hind legs, and tail. The feathers show Iridescent coloring.
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XU, ZHOU, WANG, KUANG, ZHANG & DU, 2003
Locality: Chaoyang Basin, Liaoning Province, China.
Horizon:
Biostratigraphy:
Age: Early Cretaceous.
Material:
TNP00996, IVPP V13351, V13476: Fragmentary specimens with feathers.