Genus: Microraptor XU, ZHOU & WANG, 2000
Etymology: the generic name refers to the small size of this new dromaeosaurid dinosaur.

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: Horizon IV, Jiufotang Formation, Upper Jehol Group.

Biostratigraphy: Pistacosaurus fauna, Cathayornis-Chaoyanga Avifauna.

Age: Barremian Stage, Lower Gallic Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.

Referred material:

HWANG, NORELL, QIANG & KEQIN, 2002

Locality: Qianyang, a small village approximately 10 km southwest of the city of Yixian, Liaoning Province, China.

Horizon:

Biostratigraphy:

Age: Early Cretaceous.

Material:

CAGS 20-8-001: 7 slabs, dorsal surfaces of the pectoral girdle, forelimbs, trunk, pelvic girdle, proximal femora, and proximal caudals are exposed, on the ventral surface the distal femora, tibiae, fibulae , pes, and distal caudals are exposed. The counterslab is available only for the midsection of the body.

Note: Has furcula.

CAGS 20-7-004: A single slab on a plaster block with a few counterpart pieces preserved. The specimen is semi-articulated: however, some elements like the lower jaws, lay near the edge of the slab.

Note: Has furcula.