Panthera is a genus within the family Felidae that was named and described by Lorenz Oken in 1816 who placed all the spotted cats in this group. Reginald Innes Pocock revised the classification of this genus in 1916 as comprising the tiger (P. tigris), lion (P. leo), jaguar (P. onca), and leopard (P. pardus) on the basis of common cranial features. Results of genetic analysis indicate that the snow leopard (formerly Uncia uncia) also belongs to the genus Panthera (P. uncia), a classification that was accepted by IUCN Red List assessors in 2008.
The word panther derives from classical Latin panthēra, itself from the ancient Greek pánthēr (πάνθηρ).
In Panthera species, the dorsal profile of the skull is flattish or evenly convex. The frontal interorbital area is not noticeably elevated, and the area behind the elevation is less steeply sloped. The basicranial axis is nearly horizontal. The inner chamber of the bullae is large, the outer small. The partition between them is close to the external auditory meatus. The convexly rounded chin is sloping.
All Panthera species have an incompletely ossified hyoid bone. A specially adapted larynx with proportionally larger vocal folds is covered in a large fibro-elastic pad. These characteristics enable them to roar. Only the snow leopard cannot roar, as it has shorter vocal folds of that provide a lower resistance to airflow; it was therefore proposed to be retained in the genus Uncia.
Panthera species can prusten, which is a short, soft, snorting sound; it is used during contact between friendly individuals. The roar is an especially loud call with a distinctive pattern that depends on the species.
The geographic origin of the Panthera is most likely northern Central Asia. Panthera blytheae, the oldest known Panthera species, is similar in skull features to the snow leopard. The tiger, snow leopard, and clouded leopard genetic lineages dispersed in Southeast Asia during the Miocene.
Genetic studies indicate that the pantherine cats diverged from the subfamily Felinae between six and ten million years ago.
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Panthera atrox, better known as the American lion, also called the North American lion, or American cave lion, is an extinct pantherine cat. Panthera atrox lived in North America during the late Pleistocene epoch and the early Holocene epoch, from around 340,000 to 11,000 years ago. The species was initially described by American paleontologist Joseph Leidy in 1853 based on a fragmentary mandible (jawbone) from Mississippi; the name means "savage" or "cruel".
The Caspian tiger was a Panthera tigris tigris population native to eastern Turkey, northern Iran, Mesopotamia, the Caucasus around the Caspian Sea, Central Asia to northern Afghanistan and the Xinjiang region in western China. Until the Middle Ages, it was also present in southern Russia. It inhabited sparse forests and riverine corridors in this region until the 1970s. This population was regarded as a distinct subspecies and assessed as extinct in 2003.
The snow leopard (Panthera uncia), commonly known as the ounce, is a species of large cat in the genus Panthera of the family Felidae. The species is native to the mountain ranges of Central and South Asia. It is listed as Vulnerable on the IUCN Red List because the global population is estimated to number fewer than 10,000 mature individuals and is expected to decline about 10% by 2040. It is mainly threatened by poaching and habitat destruction following infrastructural developments.
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