Orienspterodon

Orienspterodon; Temporal range: 42.0–39.0 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ Middle to Late Eocene
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	† Hyaenodonta
Superfamily:	† Hyainailouroidea
Family:	† Hyainailouridae
Subfamily:	† Hyainailourinae
Genus:	† Orienspterodon ; Egi, 2007
Type species
	†Orienspterodon dahkoensis; Chow, 1975
Species
	†O. dahkoensis(Chow, 1975); †O. mianchiensis(Sheng, Bi & Li, 2024);
Synonyms
	synonyms of genus: Chinapterodon(Lavrov, 1999); synonyms of species: O. dahkoensis: Chinapterodon dahkoensis(Lavrov, 1999); Pterodon dahkoensis(Chow, 1975); Pterodon dakoensis(Lavrov, 1999); ;

Last updated July 28, 2025

Orienspterodon ("eastern Pterodon ") is an extinct genus of hyaenodonts from extinct paraphyletic subfamily Hyainailourinae within paraphyletic family Hyainailouridae, that lived from middle to late Eocene in China and Myanmar.^[5] Type species O. dahkoensis was originally assigned to genus Pterodon in 1975, but was eventually assigned to its own genus in 2007.^[1]

References

1 2 Egi, N.; Tsubamato, T.; Takai, M. (2007). "Systematic Status of Asian "Pterodon" and Early Evolution of Hyaenaelurine Hyaenodontid Creodonts". Journal of Paleontology. 81 (4): 770–778. doi:10.1666/pleo0022-3360(2007)081[0770:SSOAPA]2.0.CO;2. JSTOR 4498825. S2CID 131018072.
↑ Chow, M.-C. (1975). "Some Carnivores from the Eocene of China" (PDF). Vertebrata PalAsiatica. 13 (3): 165–168.
↑ Sheng, J.; Bi, S.; Li, Q. (2024). "A new hyainailourid (Hyaenodonta, Mammalia) from the middle Eocene of Mianchi of Henan, China". Acta Palaeontologica Sinica. 63 (3): 386–403. doi:10.19800/j.cnki.aps.2024004.
↑ A. V. Lavrov (1999.) "Adaptive Radiation of Hyaenodontinae (Creodonta, Hyaenodontidae) of Asia." in 6th Congress of the Theriological Society, Moscow, April 13–16, p. 138 [in Russian].
↑ Louis de Bonis; Floreal Solé; Yaowalak Chaimanee; Aung Naing Soe; Chit Sein; Vincent Lazzari; Olivier Chavasseau; Jean-Jacques Jaeger (2018). "New Hyaenodonta (Mammalia) from the middle Eocene of Myanmar". Comptes Rendus Palevol. 17 (6): 357–365. Bibcode:2018CRPal..17..357D. doi: 10.1016/j.crpv.2017.12.003 .

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[Egi2007-1] 1 2 Egi, N.; Tsubamato, T.; Takai, M. (2007). "Systematic Status of Asian "Pterodon" and Early Evolution of Hyaenaelurine Hyaenodontid Creodonts". Journal of Paleontology. 81 (4): 770–778. doi:10.1666/pleo0022-3360(2007)081[0770:SSOAPA]2.0.CO;2. JSTOR 4498825. S2CID 131018072.

[2] Chow, M.-C. (1975). "Some Carnivores from the Eocene of China" (PDF). Vertebrata PalAsiatica. 13 (3): 165–168.

[3] Sheng, J.; Bi, S.; Li, Q. (2024). "A new hyainailourid (Hyaenodonta, Mammalia) from the middle Eocene of Mianchi of Henan, China". Acta Palaeontologica Sinica. 63 (3): 386–403. doi:10.19800/j.cnki.aps.2024004.

[Lavrov1999-4] A. V. Lavrov (1999.) "Adaptive Radiation of Hyaenodontinae (Creodonta, Hyaenodontidae) of Asia." in 6th Congress of the Theriological Society, Moscow, April 13–16, p. 138 [in Russian].

[5] Louis de Bonis; Floreal Solé; Yaowalak Chaimanee; Aung Naing Soe; Chit Sein; Vincent Lazzari; Olivier Chavasseau; Jean-Jacques Jaeger (2018). "New Hyaenodonta (Mammalia) from the middle Eocene of Myanmar". Comptes Rendus Palevol. 17 (6): 357–365. Bibcode:2018CRPal..17..357D. doi: 10.1016/j.crpv.2017.12.003 .

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