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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 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 ...
Homotherium is an extinct genus of scimitar-toothed cat belonging to the extinct subfamily Machairodontinae that inhabited North America, Eurasia, and Africa, as well as possibly South America during the Pliocene and Pleistocene epochs from around 4 million to 12,000 years ago.
The development of the saber-toothed condition appears to represent a shift in function and killing behavior, rather than one in predator-prey relations. Many hypotheses exist concerning saber-tooth killing methods, some of which include attacking soft tissue such as the belly and throat, where biting deep was essential to generate killing blows.
Machairodus (from Greek: μαχαίρα machaíra, 'knife' and Greek: ὀδούς odoús 'tooth') [2] is a genus of large machairodont or ''saber-toothed cat'' that lived in Africa, Eurasia and North America during the Late Miocene, from 12.5 million to 5.5 million years ago. It is the animal from which the subfamily Machairodontinae gets its name.
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The discovery of a newly identified species — the oldest saber-toothed animal found and an ancient cousin to mammals — fills a longstanding gap in the fossil record.
Xenosmilus is in the tribe Homotherini in the subfamily Machairodontinae of the cat family. [1] A paper published in 2022 proposed that Xenosmilus is a more derived member of the tribe Machairodontini (another name for Homotherini), and that Homotherium venezuelensis should be reassigned to Xenosmilus, [11] with a 2024 paper arguing that remains from Uruguay should also be assigned to the ...
The current hypothesis for the evolution of the saber-toothed phenotype, made possible by Batollnes-1, is that this phenotype arose gradually over time through mosaic evolution. [ 16 ] [ 17 ] Although the exact cause is uncertain, current findings have supported the hypothesis that a need for the rapid killing of prey was the principal pressure ...