Genus: Liaoningornis HOU, 1997
Etymology: “Liaoning” is Chinese phonetic alphabet after Liaoning Province and Greek, ornis, "bird."

Species: longidigitris HOU, 1997
Etymology: Latin, longi, “long”, and Latin, digit, “digit”: Long digit.

Holotype: IVPP V11303. 1-2

Locality: Sihetun, Shangyuan (Shangyuanzhen), Beipiao City (Beipiaoshi), 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: Fragmentary skeleton.