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This is an accepted version of this page This is the latest accepted revision, reviewed on 7 March 2025. Extinct genus of saber-toothed cat Smilodon Temporal range: Early Pleistocene to Early Holocene, 2.5–0.0082 Ma Pre๊ ๊ O S D C P T J K Pg N ↓ Mounted S. populator skeleton at Tellus Science Museum Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class ...
Smilodontini is an extinct tribe within the Machairodontinae or "saber-toothed cat" subfamily of the Felidae.The tribe is also known as the "dirk-toothed cats".They were endemic to South America, North America, Europe, Asia, and Africa during the Middle Miocene to early Holocene, from 10.3 mya—8,200 years ago.
Smilodon fatalis, Arctotherium bonariense, Canis nehringi, maned wolves, and humans would have also joined this predator guild at various stages of the Lujanian. [ 19 ] [ 33 ] [ 34 ] However, a fragmented Arctotherium c.f. tarijense tooth from Baño Nuevo-1 cave in southern Chile preserves cavities, which could be interpreted as a consequence ...
Reconstruction of a Smilodon The evolution of enlarged canines in Tertiary carnivores was a result of large mammals being the source of prey for saber-toothed predators. The development of the saber-toothed condition appears to represent a shift in function and killing behavior, rather than one in predator-prey relations.
Other differences include the canine saber teeth of Megantereon lacking serrations (present on those of Smilodon) [11] the posterior border of the nasal region being less flat and the zygomatic arch being less upwardly arched and wider than that of Smilodon, and the mastoid process lacking the exaggerated development present in Smilodon. [10]
Compromise: For those who want to split, write up Draft:Smilodon fatalis and Draft:Smilodon populator in their entirety, then bring the drafts here for review. If both articles are collectively deemed good enough to stand on their own, without being too redundant to the (rewritten, possibly need a third draft) genus article, then the split can ...
The humerus preserves a combination of pantherine and machairodontine features, such as the entepicondylar foramen's shape though it is over twice as large as that of Smilodon ' s. This foramen is missing from humeri of Smilodon populator , [ 10 ] [ 11 ] leading the authors to speculate that P. balamoides was a pantherine.
The Etymology of the genus name was given by Wallace & Hubert to mean "root of Smilodon", with "rhizo" meaning "root" because of the apparent ancestral relation to Smilodon. The species name "fiteae" was named in honor of Barbara Fite, who donated the paratype specimen, UF 135626 , to the Florida Museum of Natural History.