Panthera
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For other uses, see Panthera (disambiguation).
Panthera is a genus of the family Felidae (the cats), which contains four well-known living species: the Lion, the Tiger, the Jaguar, and the Leopard. The genus comprises about half of the Pantherinae subfamily, the big cats. One meaning of the word panther is to designate cats of this subfamily. The word is often presumed to derive from Greek pan- ("all") and ther ("beast"), but this may be a folk etymology. Although it came into English through the classical languages, panthera is probably of East Asian origin, meaning "the yellowish animal," or "whitish-yellow".[2] Only these four cat species have the anatomical changes enabling them to roar. The primary reason for this was assumed to be the incomplete ossification of the hyoid bone. However, new studies show that the ability to roar is due to other morphological features, especially of the larynx. The Snow Leopard, Uncia uncia, which is sometimes included within Panthera, does not roar. Although it has an incomplete ossification of the hyoid bone, it lacks the special morphology of the larynx.[3]
EvolutionLike much of the Felidae family, Panthera has been subject to much debate and taxonomic revision. At the base of the genus is probably the extinct felid Viretailurus schaubi, which is sometimes also regarded as an early member of the Puma group. Panthera has likely derived in Asia, but the definite roots of the genus remain unclear. The divergence of the Pantherine cats (including the living genera Panthera, Uncia and Neofelis) from the Felinae (including all other living cat species) has been ranked between six and ten Ma[4]. The fossil record points to the emergence of Panthera just two to 3.8 million years ago[5]. Morphological and genetic studies have suggested that the tiger was the first of the recent Panthera species to emerge from the lineage[6], but this remains unresolved. The Snow Leopard was seen originally at the base of the Panthera, but newer molecular studies suggest, that it may be even a sister species of the Leopard.[6] A prehistoric feline, probably closely related to the modern Jaguar, is Panthera gombaszogensis, often called European Jaguar. This species appeared first around 1.6 million years ago in what is now Olivola in Italy. The Clouded Leopard (Neofelis nebulosa) is generally placed at the basis of the Panthera group, but is not included in the genus Panthera itself.[4][6][7][8] Many studies place the Snow Leopard within the genus Panthera[4][6][8] but there is no consensus whether the scientific name of the Snow Leopard should remain Uncia uncia[9][10] or be moved to Panthera uncia.[4][6][7][8] Species, subspecies, and populationsThere have been many subspecies of all four Panthera species suggested; however, many of the Leopard and Lion subspecies are questionable. Recently it has been proposed that all sub-saharan populations of Leopards are all the same Leopard subspecies, and all sub-saharan populations of Lions likewise belong to the same Lion subspecies, as they do not have sufficient genetic distinction between them. Some prehistoric Lion subspecies have been described from historical evidence and fossils. They may have been separate species. The 'Black panther' is not a distinct species but is just the common name for black (melanistic) specimens of the genus, most often encountered in Jaguar and Leopard species. Taxa(Extinct species and subspecies are indicated with the symbol †)
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