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Canis ferox
Canis ferox (Latin: ''canis'': dog, ''ferox'': fierce; hence fierce dog) is a species of canidae which was endemic to North America and lived from the Late Hemphillian stage (10.9 Mya) of the Pliocene through the Miocene epoch (5.8 Mya).〔(PaleoBiology Database: ''Canis ferox, age range and collections )〕 ''Canis ferox'' existed for approximately . It is a primitive species, existing before most of the clades of Canis were formed. ''Canis ferox'' was named by Miller and Carranza-Castaneda in 1998.〔O. Mooser and W. W. Dalquest. 1975. Journal of Mammalogy〕 ==Fossil distribution== The first fossil record was found in Rancho Viejo, central Mexico. No other record of ''Canis ferox'' has been found outside of central Mexico. A specimen was estimated by Legendre and Roth to weigh 14.3 kg (31.5 lbs) and another specimen was estimated to weigh 13.3 kg (29.3 lbs).〔S. Legendre and C. Roth. 1988. Correlation of carnassial tooth size and body weight in recent carnivores (Mammalia). Historical Biology 1(1):85-98〕
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