| Pengornithids Temporal range: Early Cretaceous, (possible Late Cretaceous record)
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| Fossil specimen of Parapengornis eurycaudatus | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | Theropoda |
| Clade: | Avialae |
| Clade: | †Enantiornithes |
| Family: | †Pengornithidae Wang et al., 2014 |
| Type genus | |
| †Pengornis Zhou, Clarke, & Zhang, 2008
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| Genera | |
Pengornithidae is a group of early enantiornithines from the early Cretaceous Period of China, with the putative member Falcatakely possibly extending this clade's range into the Late Cretaceous of Madagascar,[2] and several putative pengornithids also hail from this formation.[3] Specimens of these animals have been found both in the Huajiying Formation and Jiufotang Formation of Liaoning and Hebei provinces, dating from the Hauterivian age (130.7 million years ago) to the Aptian age (120 million years ago).[4]
- ^ O'Connor, P. M.; Turner, A. H.; Groenke, J. R.; et al. (2020). "Late Cretaceous bird from Madagascar reveals unique development of beaks". Nature. doi:10.1038/s41586-020-2945-x
- ^ O'Connor, P. M.; Turner, A. H.; Groenke, J. R.; et al. (2020). "Late Cretaceous bird from Madagascar reveals unique development of beaks". Nature. doi:10.1038/s41586-020-2945-x
- ^ O'Connor and Forster, 2010. A Late Cretaceous (Maastrichtian) avifauna from the Maevarano Formation, Madagascar. Journal of Vertebrate Paleontology. 30(4), 1178-1201.
- ^ Wang, X.; O'Connor, J. K.; Zheng, X.; Wang, M.; Hu, H.; Zhou, Z. (2014). "Insights into the evolution of rachis dominated tail feathers from a new basal enantiornithine (Aves: Ornithothoraces)". Biological Journal of the Linnean Society. 113 (3): 805–819. doi:10.1111/bij.12313.