Named By: J. Lü - 2003.
Classification: Chordata, Reptilia, Dinosauria, Theropoda, Oviraptorosauria, Oviraptoridae, Oviraptorinae.
Species: H. huangi (type).
Size: At least 1.5 meters long.
Known locations: China, Guangdong Province - Dalangshan Formation.
Time period: Maastrichtian of the Cretaceous.
Fossil representation: Partial skull, mandible and most of the post cranial skeleton.
Found almost complete, Heyuannia was the first oviraptorid to be discovered within the borders of mainland China, specifically Guangdong Province. Up until the description of Heyuannia, other Asian oviraptorids were all discovered in Mongolia. Going by the holotype individual, Heyuannia seems to have been a small mid-sized genus of oviraptorid. The skull of Heyuannia is noted as being toothless, which again like other genera of oviraptorids, means that the exact of diet of Heyuannia is uncertain in the absence of confirmed stomach contents.
- A new oviraptorosaurid (Theropoda: Oviraptorosauria) from the Late Cretaceous of southern China. - Journal of Vertebrate Paleontology 22(4):871-875. - J. Lü - 2003.