to early Aptian, roughly 125-120 mya). Sapeornis contains only one species, Sapeornis chaoyangensis. Sapeornis was large for an early avialan, about 30–33...

of the Jiufotang Formation rocks and named Longipteryx chaoyangensis and Sapeornis chaoyangensis in reference to the city. The name "Chaoyang" originates...

that their specimen closely resembles Sapeornis, but the pubis was longer and, since no skull was known for Sapeornis, they did not consider the two names...

211–226 Zhou, Z.; Zhang, F. (2003). "Anatomy of the primitive bird Sapeornis chaoyangensis from the Early Cretaceous of Liaoning, China". Canadian Journal...

described Omnivoropteryx, noting that it was similar to Sapeornis. Later specimens of Sapeornis with skulls demonstrated that the two were probably synonymous...

K Pg N ↓ (possible Late Cretaceous record) Fossil specimen of Sapeornis chaoyangensis, Hong Kong Science Museum Scientific classification Domain: Eukaryota...

Zhonghe & Zhang, Fucheng (2003): Anatomy of the primitive bird Sapeornis chaoyangensis from the Early Cretaceous of Liaoning, China. Canadian Journal...

plants from the magnoliid angiosperm clade. Five specimens of Sapeornis chaoyangensis with different-preserved feathers are reported from the Early Cretaceous...

Pouech (2017). A well-preserved skull of a juvenile specimen of Sapeornis chaoyangensis is described by Wang et al. (2017), preserving what the authors...

styles in Mesozoic birds. A study on the anatomy of the skull of Sapeornis chaoyangensis is published by Hu et al. (2020). New specimen of Longusunguis...