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The American lion (Panthera atrox (/ ˈ p æ n θ ər ə ˈ æ t r ɒ k s /), with the species name meaning "savage" or "cruel", also called the North American lion) is an extinct pantherine cat native to North America during the Late Pleistocene from around 130,000 to 12,800 years ago.
Craniomandibular osteopathy, also known as lion's jaw, is a developmental disease in dogs causing extensive bony changes in the mandible and skull. In this disease, a cyclical resorption of normal bone and replacement by immature bone occurs along the inner and outer surfaces of the affected bones. [ 1 ]
The lion (Panthera leo) is a ... P. atrox, or the American lion, ... usually only the structure of the lower jaw can be used as a reliable indicator of species. [48] [49]
The tooth is conical and belonged to the upper right or lower left jaw of an adult individual. The tooth fragment is 5 cm (2.0 in) in height–though the actual height may have been double that–2.25 cm (0.89 in) longitudinally–from the side facing the tongue to the side facing the lip–and 2.95 cm (1.16 in) transversely–from the left ...
Related: 5-Year-Old Girl Now Cancer-Free After Dentist Noticed Tumor in Her Jaw During Routine Visit Twelve of the patients died between 2 months and 7 years after the infusion, “all due to ...
[24] [25] Unlike the American lion, which is a true cat, Smilodon was a member of the Machairodontinae. Based on the microwear texture of the teeth it has been suggested that Smilodon fed on both harder material and soft flesh, preferring the later following injuries to the jaws and teeth. † Canis edwardii [26]
One jaw with teeth and two phalanges A small species of tapir known from few remains at La Brea. The taxonomic status of many North American tapirs is debated and many of the species may be synonyms of each other. † Mexican horse [11] [12] [46] † Equus conversidens: A small bodied horse species of dubious nature, only few remains are known ...
The scissor-like motion is created by the movement between the carnassial pair when the jaw occludes. The inside of the fourth upper pre-molar closely passes by the outer surface of the first lower molar, thus allowing the sharp cusps of the carnassial teeth to slice through meat.