Machaeroidinae

This article is about the extinct subfamily of carnivorous mammals Machaeroidinae. For the similarly named subfamily of extinct cats, see Machairodontinae.

Machaeroidinae Temporal range: 52.4–39.7  Ma PreꞒ Ꞓ O S D C P T J K Pg N early to middle Eocene
skull cast of Machaeroides eothen
lower jaw of Apataelurus kayi
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Clade:	Pan-Carnivora
Order:	† Oxyaenodonta
Family:	† Oxyaenidae
Subfamily:	† Machaeroidinae Matthew, 1909 [1]
Type genus
† Machaeroides Matthew, 1909
Genera
[see classification]
A map showing the fossil finds of machaeroidinid genera.
Synonyms
list of synonyms: Machaeroididae Machaeroidini (Van Valen, 1966) [2] Machairoidinae (Matthew, 1909) Machaerodinae (Lavrov, 1999) [3]

Machaeroidinae ("dagger-like") is an extinct subfamily of carnivorous saber-toothed placental mammals from extinct family Oxyaenidae, that lived from the early to middle Eocene of Asia and North America. ^[4] Traditionally classified as hyaenodonts, this group is now classified as a member of the family Oxyaenidae. ^{[5] [6] [7]}

Classification and phylogeny

Taxonomy

Subfamily: †Machaeroidinae(Matthew, 1909) Genus: † Apataelurus (Scott, 1937) †Apataelurus kayi(Scott, 1937) †Apataelurus pishigouensis(Tong & Lei, 1986) Genus: † Diegoaelurus (Zack, Poust & Wagner, 2022) [8] Diegoaelurus vanvalkenburghae(Zack, Poust & Wagner, 2022) Genus: † Isphanatherium (Lavrov & Averianov, 1998) Isphanatherium ferganensis(Lavrov & Averianov, 1998) Genus: † Machaeroides (Matthew, 1909) †Machaeroides eothen(Matthew, 1909) †Machaeroides simpsoni(Dawson, 1986) Incertae sedis : †Machaeroidinae sp. [CM 2386] (Zack, 2019) †Machaeroidinae sp. [FMNH PM 1506] (Tomiya, 2021) †Machaeroidinae sp. [USNM 173514] (Zack, 2019)

See also

• Mammal classification
• Oxyaenidae

References

1. W. D. Matthew (1909.) "The Carnivora and Insectivora of the Bridger Basin, middle Eocene." Memoirs of the American Museum of Natural History 9:289-567
2. L. Van Valen (1966.) "Deltatheridia, a new order of Mammals." Bulletin of the American Museum of Natural History 132(1):1-126
3. 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].
4. Malcolm C. McKenna, Susan K. Bell: Classification of Mammals: Above the Species Level in Columbia University Press, New York (1997), 631 Seiten. Machaeroidinae
5. Zack, S. (2014). "Saber-tooth origins: a new skeletal association and the affinities of Machaeroidinae (Mammalia, Creodonta)". Journal of Vertebrate Paleontology, Program and Abstracts: 259–260.
6. Shawn P. Zack (2019). "A skeleton of a Uintan machaeroidine 'creodont' and the phylogeny of carnivorous eutherian mammals". Journal of Systematic Palaeontology. 17 (8): 653–689. doi:10.1080/14772019.2018.1466374. S2CID   89934728.
7. Shawn P. Zack (2019). "The first North American Propterodon (Hyaenodonta: Hyaenodontidae), a new species from the late Uintan of Utah". PeerJ. 7: e8136. doi: 10.7717/peerj.8136 . PMC   6876642 . PMID   31772846.
8. Zack, Shawn P.; Poust, Ashley W.; Wagner, Hugh (2022-03-15). "Diegoaelurus, a new machaeroidine (Oxyaenidae) from the Santiago Formation (late Uintan) of southern California and the relationships of Machaeroidinae, the oldest group of sabertooth mammals". PeerJ. 10: e13032. doi: 10.7717/peerj.13032 . ISSN   2167-8359. PMC   8932314 . PMID   35310159.