Wikipedia
Sapeornis
Sapeornis is a genus of primitive avialans which lived during the Early Cretaceous ( late Aptian to early Albian, roughly 125-120 mya). The genus contains only the species Sapeornis chaoyangensis which is known from fossils found in Jiufotang Formation and Yixian Formation rocks in the People's Republic of China. Several nearly complete skeletons have been found.
Sapeornis is named for SAPE, the Society of Avian Paleontology and Evolution, added to the Ancient Greek όρνις (ornis), meaning "bird". chaoyangensis is Latin for "from Chaoyang".