Best Saber Tooth
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Smilodon fatalis, a saber-toothed cat of the Pleistocene, is known from thousands of specimens recovered at the La Brea Tar Pits in Los Angeles and possessed upper canines reaching roughly 18 cm in length.
Smilodon populator, the largest saber-toothed cat, inhabited Pleistocene South America and had an estimated body mass of up to 400 kg, making it one of the heaviest feliform carnivorans in the fossil record.
Thylacosmilus atrox, a sparassodont from the Miocene–Pliocene of South America, independently evolved elongated saber-like upper canines and bony lower-jaw flanges convergent with those of true saber-toothed cats despite being only distantly related.
Lycaenops ornatus is an extinct gorgonopsian therapsid known from Late Permian rocks of South Africa's Karoo Basin. Like other gorgonopsians, it was a predatory non-mammalian synapsid with an elongated skull and enlarged, saber-like canine teeth adapted for seizing prey. Fossils of the species help...
