Arctocyonia

Arctocyonians; Temporal range: Early Paleocene–Early Eocene PreꞒ Ꞓ O S D C P T J K Pg N
	Fossils of Arctocyon primaevus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Clade:	Ferae
Order:	†Arctocyonia; Van Valen, 1966
Families
	†Arctocyonidae; †Oxyclaenidae; †Quettacyonidae

Arctocyonians (Arctocyonia also known as "Procreodi") are a clade of laurasiatherian mammals whose stratigraphic range from the Palaeocene to the Early Eocene epochs. They were among the earliest examples of major mammalian predators after the Cretaceous–Paleogene extinction event. While some classify arctocyonians as stem-artiodactyls,[1][2] others have classified the group as members of Ferae.[3] There are three families classified in the order: Arctocyonidae, Oxyclaenidae, and Quettacyonidae.

References

McKenna, M. C. (1975). "Toward a phylogenetic classification of the Mammalia". In Luckett, W. P.; Szalay, F. S. (eds.). Phylogeny of the Primates. New York: Plenum. pp. 21–46.
De Bast, Eric; Smith, Thierry (2012-10-31). "Reassessment of the small 'arctocyonid' Prolatidens waudruae from the Early Paleocene of Belgium, and its phylogenetic relationships with ungulate-like mammals". Journal of Vertebrate Paleontology. doi:10.1080/02724634.2013.747531. Retrieved 2020-02-26. Cite journal requires |journal= (help)
Halliday, Thomas J. D.; Upchurch, Paul; Goswami, Anjali (2015). "Resolving the relationships of Paleocene placental mammals" (PDF). Biological Reviews. 92 (1): 521–550. doi:10.1111/brv.12242. ISSN 1464-7931. PMC 6849585. PMID 28075073.

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[1] McKenna, M. C. (1975). "Toward a phylogenetic classification of the Mammalia". In Luckett, W. P.; Szalay, F. S. (eds.). Phylogeny of the Primates. New York: Plenum. pp. 21–46.

[2] De Bast, Eric; Smith, Thierry (2012-10-31). "Reassessment of the small 'arctocyonid' Prolatidens waudruae from the Early Paleocene of Belgium, and its phylogenetic relationships with ungulate-like mammals". Journal of Vertebrate Paleontology. doi:10.1080/02724634.2013.747531. Retrieved 2020-02-26. Cite journal requires |journal= (help)

[HallidayUpchurch2015-3] Halliday, Thomas J. D.; Upchurch, Paul; Goswami, Anjali (2015). "Resolving the relationships of Paleocene placental mammals" (PDF). Biological Reviews. 92 (1): 521–550. doi:10.1111/brv.12242. ISSN 1464-7931. PMC 6849585. PMID 28075073.