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Amphimachairodus

Venezuela epaiva Offline
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( This post was last modified: 07-08-2019, 11:19 PM by epaiva )

Amphimachairodus

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Amphimachairodus Skull (Bone Clone)
- length of skull 37 cm
- wide of skull 20,5 cm
- length of upper fang 10,2 cm
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Venezuela epaiva Offline
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( This post was last modified: 04-30-2017, 05:50 AM by epaiva )


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Taken from the Book SABERTOOTH Mauricio Anton
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United States Polar Offline
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Isn't Machairodus horriblis the same as giganteus

M. giganteus and M. kabir is apparently smaller than the newly discovered M. giganteus.
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Machairodus Horriblis:

A skull of Machairodus horribilis and new evidence for gigantism as a mode of mosaic evolution in machairodonts (Felidae, Carnivora)

"Sabertooth cats were extinct carnivorans that have attracted great attention and controversy because of their unique dental morphology representing an entirely extinct mode of feeding specialization. Some of them are lion-sized or tiger-sized carnivorans who are widely interpreted as hunters of larger and more powerful preys than those of their modern nonsaber-toothed relatives. We report the discovery of a large sabertooth cat skull of Machairodus horribilis from the Late Miocene of northwestern China. It shares some characteristics with derived sabertooth cats, but also is similar to extant pantherines in some cranial characters. A functional morphological analysis suggests that it differed from most other machairodont felids and had a limited gape to hunt smaller preys. Its anatomical features provide new evidence for the diversity of killing bites even within in the largest saber-toothed carnivorans and offer an additional mechanism for the mosaic evolution leading to functional and morphological diversity in sabertooth cats."

The Biggest Saber Cat


So even accounting for its size, M. horriblis had one of the smallest gapes for ancient sized prey (which are, on average, considerably larger than modern prey). The same happened with ancient pantherines, Ngandong Tiger and American Lion, even though both are much larger than their modern relatives, both had narrower jaw gapes and less robust skulls. Maybe there is a noticeable pattern between ancient and modern felines in general.
"Be the reason someone smiles. Be the reason someone feels loved and believes in the goodness in people."

- Roy T. Bennett
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Venezuela epaiva Offline
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( This post was last modified: 06-14-2017, 10:08 PM by epaiva )


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Skull, musculature, and reconstructed head of the saber toothed felid Machairodus giganteus.
Although this species is widespread in many European sites of Turolian age, the best cranial remains actually come from China. The Chinese skulls show a greater machairodont specialization than seen in Machairodus aphanistus; the muzzle is more elongated, the mastoid region is projected inferiorly, and the coronoid process in the mandible is reduced, among other adaptations. All these features enabled the cat to open its jaws to around 90ª and efficiently bite the neck of large ungulates.
Total length of skull: 37 cm.
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Canada Wolverine Offline
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Machairodus horribillis by Roman Uchytel, 
https://www.newdinosaurs.com/roman-uchytel/


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Canada Wolverine Offline
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Late Miocene, painting by Velizar Simeonovski:


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Venezuela epaiva Offline
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Amphimachairodus by Mauricio Anton

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Venezuela epaiva Offline
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Machairodus alphanistus
Credit to @_quagga

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Venezuela epaiva Offline
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1) Amphimachairodus giganteus by Roman Uchytel
2) An A. giganteus skull
Credit to @evilution_soup

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