Machaeroidinae ("dagger-like") is a
subfamily
In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end subfamily botanical names with "-oideae", and zoologi ...
of extinct carnivorous
sabre-toothed placental
Placental mammals (infraclass Placentalia ) are one of the three extant subdivisions of the class Mammalia, the other two being Monotremata and Marsupial
Marsupials are any members of the mammalian infraclass Marsupialia. All extant marsup ...
mammals from
Asia
Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area ...
and
North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...
.
[Malcolm C. McKenna, Susan K. Bell: ''Classification of Mammals: Above the Species Level'' in Columbia University Press, New York (1997), 631 Seiten. ] Traditionally classified as
hyaenodont
Hyaenodonta ("hyena teeth") is an extinct order of hypercarnivorous placental pan-carnivoran mammals from mirorder Ferae. Hyaenodonts were important mammalian predators that arose during the early Paleocene in Europe and persisted well into the ...
s, this group is now classified as a member of the family
Oxyaenidae
Oxyaenidae ("sharp hyenas") is a family of extinct carnivorous placental mammals. Traditionally classified in order Creodonta, this group is now classified in its own order Oxyaenodonta ("sharp tooth hyenas") within clade Pan-Carnivora in mirorde ...
.
Classification and phylogeny
Taxonomy
* Subfamily: †Machaeroidinae
(Matthew, 1909)
** Genus: †''
Apataelurus''
(Scott, 1937)
*** †''Apataelurus kayi''
(Scott, 1937)
*** †''Apataelurus pishigouensis''
(Tong & Lei, 1986)
** Genus: †''
Diegoaelurus
''Diegoaelurus'' ("San Diego's cat") is a Extinction, extinct genus of mammals from the extinct subfamily Machaeroidinae within extinct family Oxyaenidae. This genus currently contains only one species ''Diegoaelurus vanvalkenburghae'', found i ...
''
(Zack, Poust & Wagner, 2022)
*** ''Diegoaelurus vanvalkenburghae''
(Zack, Poust & Wagner, 2022)
** Genus: †''
Isphanatherium''
(Lavrov & Averianov, 1998)
*** ''Isphanatherium ferganensis''
(Lavrov & Averianov, 1998)
** Genus: †''
Machaeroides
''Machaeroides'' ("dagger-like") is a genus of sabre-toothed predatory mammal that lived during the Eocene (54.9 to 46.2 mya). Its fossils were found in the U.S. state of Wyoming.
Description
Both species bore a passing or superficial resemblance ...
''
(Matthew, 1909)
*** †''Machaeroides eothen''
(Matthew, 1909)
*** †''Machaeroides simpsoni''
(Dawson, 1986)
** ''
Incertae sedis
' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty ...
'':
*** †
Machaeroidinae sp. (''CM 2386'') (Zack, 2019)
*** †
Machaeroidinae sp. (''FMNH PM 1506'') (Tomiya, 2021)
*** †
Machaeroidinae sp. (''USNM 173514'') (Zack, 2019)
Phylogeny
The phylogenetic relationships of the subfamily Machaeroidinae are shown in the following cladogram:
[Prevosti, F. J. & Forasiepi, A. M. (2018.]
"Introduction. Evolution of South American Mammalian Predators During the Cenozoic: Paleobiogeographic and Paleoenvironmental Contingencies"
/ref>
References
{{Taxonbar, from=Q15878983