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Extinct species of mammal From Wikipedia, the free encyclopedia
Elephas planifrons is an extinct species of elephant, known from the Late Pliocene-Early Pleistocene of the Indian subcontinent.
Elephas planifrons Temporal range: | |
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Partial skull in various views | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Proboscidea |
Family: | Elephantidae |
Genus: | Elephas |
Species: | †E. planifrons |
Binomial name | |
†Elephas planifrons Falconer & Cautley, 1846 | |
The number of lamellae on the third molars is typically in the range of 11 to 15.[1] Members of the species retained permanent premolars, unlike living Asian elephants.[2]
Isotopic evidence suggests that the species had a grazing based diet.[3]
Elephas planifrons represents one of the earliest dispersals of elephants outside of Africa, first arriving on the Indian subcontinent around 3.6 million years ago.[4][3] The youngest remains in the region are suggested to date to around 1.5 million years ago.[5] While only definitvely reported from the Indian subcontinent, possible E. planifrons remains have been reported from Indonesia, and the species may be closely related to the Indonesian dwarf elephant genus Stegoloxodon.[2] A 2020 PhD thesis suggested that the species was not a true member of the genus Elephas, but should instead be considered a member of the genus Phanagoroloxodon with the African Pliocene species "Elephas" recki brumpti considered to be a synonym of "E". planifrons. However, its placement in Phanagoroloxodon and its synonymity with "E". recki brumpti have been rejected by other authors, though the two species may be closely related.[6]
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