Vescornis

The holotype fossil is in the collection of the Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences.

The fossil was found in Early Cretaceous rocks first attributed to the Yixian Formation, Senjitu, Fengning County, Hebei Province, China.

They noted several morphological similarities to Jibeinia but, also, distinct differences in some characters from the written description.

They sought to compare the two specimens but learned from Dr. Hou in 2001 that the holotype Jibeinia had been lost, and existing casts were of too poor a quality to be decisive.

However, the describers (Xu et al.) gave little anatomical detail and few comparisons to other taxa, and later researchers have concluded that this was not an adequate description to establish the new name, and it is now regarded as a nomen nudum.