Beiguornis

Beiguornis; Temporal range: Early Cretaceous, 125–120 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Dinosauria
Clade:	Saurischia
Clade:	Theropoda
Clade:	Avialae
Clade:	† Enantiornithes
Family:	† Bohaiornithidae
Genus:	† Beiguornis ; Wang et al., 2022
Species:	†B. khinganensis
Binomial name
	†Beiguornis khinganensis; Wang et al., 2022

Last updated October 12, 2025

Beiguornis is a genus of bohaiornithid dinosaurs from the Early Cretaceous Longjiang Formation of Inner Mongolia, China. The genus contains a single species, Beiguornis khinganensis. Beiguornis is the first and only enantiornithine known from the Longjiang Formation. In the phylogenetic analysis conducted by the describing authors, Beiguornis formed a monophyletic group with the bohaiornithids Sulcavis and Zhouornis .^[2]

References

↑ Yu, Zhiqiang; Dong, Liping; Huyskens, Magdalena H.; Yin, Qing-Zhu; Wang, Yuan; Deng, Chenglong; He, Huaiyu (2022-03-01). "The exceptionally preserved Early Cretaceous "Moqi Fauna" from eastern Inner Mongolia, China, and its age relationship with the Jehol Biota". Palaeogeography, Palaeoclimatology, Palaeoecology. 589 110824. Bibcode:2022PPP...58910824Y. doi: 10.1016/j.palaeo.2021.110824 . ISSN 0031-0182.
↑ Wang X, Ju S, Wu W, Liu Y, Guo Z, Ji Q (2022). "The first enantiornithine bird from the Lower Cretaceous Longjiang Formation in the Great Khingan Range of Inner Mongolia". Acta Geologica Sinica. Archived from the original on 2022-01-21. Retrieved 2022-01-21.
↑ Zhang Z, O'Connor J, Di L, Qingjin M, Sigurdsen T, Chiappe L (2014). "New information on the anatomy of the Chinese Early Cretaceous Bohaiornithidae (Aves: Enantiornithes) from a subadult specimen of Zhouornis hani". PeerJ. 2 e407. doi: 10.7717/peerj.407 . PMC 4045331 . PMID 24918031.

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[1] Yu, Zhiqiang; Dong, Liping; Huyskens, Magdalena H.; Yin, Qing-Zhu; Wang, Yuan; Deng, Chenglong; He, Huaiyu (2022-03-01). "The exceptionally preserved Early Cretaceous "Moqi Fauna" from eastern Inner Mongolia, China, and its age relationship with the Jehol Biota". Palaeogeography, Palaeoclimatology, Palaeoecology. 589 110824. Bibcode:2022PPP...58910824Y. doi: 10.1016/j.palaeo.2021.110824 . ISSN 0031-0182.

[2] Wang X, Ju S, Wu W, Liu Y, Guo Z, Ji Q (2022). "The first enantiornithine bird from the Lower Cretaceous Longjiang Formation in the Great Khingan Range of Inner Mongolia". Acta Geologica Sinica. Archived from the original on 2022-01-21. Retrieved 2022-01-21.

[3] Zhang Z, O'Connor J, Di L, Qingjin M, Sigurdsen T, Chiappe L (2014). "New information on the anatomy of the Chinese Early Cretaceous Bohaiornithidae (Aves: Enantiornithes) from a subadult specimen of Zhouornis hani". PeerJ. 2 e407. doi: 10.7717/peerj.407 . PMC 4045331 . PMID 24918031.

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