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This is an accepted version of this page This is the latest accepted revision, reviewed on 2 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.
One of the best-known genera is the machairodont or "saber-toothed cat" Smilodon, the species of which, especially S. fatalis, are popularly referred to as "saber-toothed tigers", although they are not closely related to tigers . Despite some similarities, not all saber-tooths are closely related to saber-toothed cats or felids in-general
The biggest saber-toothed cats are Amphimachairodus kabir and Smilodon populator, with the males possibly reaching 350–490 kg (770–1,080 lb) and 220–450 kg (490–990 lb) respectively. [42] [184] [185] Another contender for the largest felid of all time is Machairodus.
Studies of Homotherium and Smilodon suggest that scimitar-toothed machairodonts like Homotherium itself possessed upper lips and gum tissue that could effectively hide and protect their upper canines; a trait they shared in common with modern cat species, while Smilodon had canines that remained partially exposed and protruded past the lips and ...
S. fatalis may have been impacted by habitat turnover and loss of prey it specialized on due to possible climatic plus anthropogenic impacts and other factors while the extinction of S. populator remains poorly understood." As long as the lede mainly reflects on the extinction of Smilodon in particular, we should be
Saber-toothed cat (Smilodon) spp. [92] Smilodon fatalis (northwestern South America) Smilodon populator (eastern and southern South America) Patagonian jaguar (Panthera onca mesembrina) (some authors have suggested that these remains actually belong to the American lion instead [93]) Caniformia. Canidae Dire wolf (Aenocyon dirus) Nehring's wolf ...
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]