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Carnivora is the premier Animal discussion and debate forum on the internet. Originators of species profiles, we have the most extensive range of animal profiles with the most detailed information that is constantly updated as it becomes available. We were the first forum to include a dedicated interspecific conflict board to allow discussion of hypothetical animal matchups. So please take time to view our site and the range of topics available, and also take the opportunity to become a member of our community.

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Rare Indochinese Tiger population discovered in Eastern Thailand on jungle cam


Smilodon populator v Rubidgea atrox

Posted by Taipan (Admins) at Today, 8:49 PM. 3 comments

Smilodon populator
Smilodon, often called a saber-toothed cat or wrongly a saber-toothed tiger, is an extinct genus of machairodonts. This saber-toothed cat was endemic to North America and South America, living from near the beginning through the very end of the Pleistocene epoch (2.5 mya—10,000 years ago). Smilodon populator ("Smilodon the Devastator"), 1 million-10,000 years ago; occurred in the eastern parts of South America and was the largest species of all machairodonts. It was much larger than its cousins, S. fatalis and S. gracilis, possessing a massive chest and front legs, and is the largest known variety of saber-toothed cat. It was more than 1.40 m (55 in) high at the shoulder, 2.6 m (100 in) long on average and had a 30 cm (12 in) tail. Smilodon populator was substantially heavier and larger than any extant felid, with a body mass range of 220–360 kg. Particularly large specimens of S. populator almost certainly exceeded 400 kg in body mass. Its upper canines reached 30 cm (12 in) and protruded up to 17 cm (6.7 in) out of the upper jaw. Genetic evidence suggests that Smilodon populator and other members of the genus diverged from the main lineage of modern cats (subfamily Felinae) around 14-18 million years ago.

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Rubidgea atrox
Rubidgea is an extinct genus of therapsid belonging to the Gorgonopsidae. It had very large canines functioning as saber-teeth, longer than the teeth of the dinosaur Tyrannosaurus rex. It lived in the Permian period, specifically the Wuchiapingian Stage. Rubidgea reached a length of 3.4 metres (11 ft) and had a 46 centimetres (1.51 ft) long skull. Rubidgea was native to what is now South Africa, and based on its overall morphology, is considered to be the most robust and powerful of the gorgonopsids known. Though some of its relatives, such as the Russian Inostrancevia were as large or larger, they were far more slender in build when compared to Rubidgea.

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Apr 28 2017, 02:23 AM
Rubidgea atrox vs. Smilodon populator


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