Machaeroidinae Explained

Machaeroidinae ("dagger-like") is an extinct subfamily of carnivorous sabre-toothed placental mammals from extinct family Oxyaenidae, that lived from the early to middle Eocene of Asia and North America.^[1] Traditionally classified as hyaenodonts, this group is now classified as a member of the family Oxyaenidae.^{[2] [3] [4]}

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)^[5]
    • 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)

See also

• Mammal classification
• Oxyaenidae

Notes and References

1. Malcolm C. McKenna, Susan K. Bell: Classification of Mammals: Above the Species Level in Columbia University Press, New York (1997), 631 Seiten.
2. Zack . S. . Saber-tooth origins: a new skeletal association and the affinities of Machaeroidinae (Mammalia, Creodonta) . Journal of Vertebrate Paleontology, Program and Abstracts . 2014 . 259–260.
3. 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 . 10.1080/14772019.2018.1466374. 89934728 .
4. Shawn P. Zack . 2019 . The first North American Propterodon (Hyaenodonta: Hyaenodontidae), a new species from the late Uintan of Utah . PeerJ . 7 . e8136 . 10.7717/peerj.8136 . 31772846 . 6876642 . free .
5. 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 . en . 10 . e13032 . 10.7717/peerj.13032. 35310159 . 8932314 . 2167-8359. free .