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This is an accepted version of this page This is the latest accepted revision, reviewed on 6 March 2025. Extinct genus of saber-toothed cat Smilodon Temporal range: Early Pleistocene to Early Holocene, 2.5–0.0082 Ma PreꞒ Ꞓ 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 ...
Skull of Smilodon fatalis at maximum gape (128°) Skull of a domestic cat, at maximum gape (80°) The main inhibitors of a large gape for mammals are the temporalis and masseter muscles at the back of the jaw. These muscles have the capacity to be powerful and undergo a great degree of modification for ranging bite forces, but are not very ...
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.
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.
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]
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Smilodon is among the most well-known mammals from the Ice Age, but S. gracilis is far smaller than later species. S. gracilis was described on the basis of a canine from Port Kennedy by Cope in 1880 and was the ancestor to Rancholabrean species. [24] [25] Unlike the American lion, which is a true cat, Smilodon was a member of the Machairodontinae.
Prehistoric Predators is a 2007 National Geographic Channel program based on different predators that lived in the Cenozoic era, including Smilodon and C. megalodon.The series investigated how such beasts hunted and fought other creatures, and what drove them to extinction.