Kingdom Animalia Family Crocodylidae Tribe †Mekosuchini Rank Genus | Class Reptilia Subfamily †Mekosuchinae Phylum Chordata Order Crocodiles | |
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Similar Trilophosuchus, Harpacochampsa, Quinkana, Volia, Crocodiles | ||
Mekosuchus how to pronounce it
Mekosuchus is a genus of extinct Australasian crocodiles within the subfamily Mekosuchinae. They are believed to have been made extinct by the arrival of man on the South Pacific islands where they lived. The species of this genus were small in size, 2 m in maximum length, and terrestrial, making them the last surviving group of fully terrestrial crocodilians, leaving only semi-terrestrial species such as the Cuban crocodile and the dwarves Osteolaemus and Paleosuchus.
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Fossils of related mekosuchines, such as Trilophosuchus, have been found from Miocene Australia (the earliest known mekosuchine is the Eocene genus Kambara), though the mekosuchines had gone extinct in Australia prior to the arrival of humans. Mekosuchus survived until the Holocene, and their sub-fossils have been found in New Caledonia and Vanuatu.
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Species
There are currently four species of Mekosuchus recognised. The first discovered (and youngest) is the type species M. inexpectatus from the Holocene of New Caledonia which became extinct at some point in the last 4,000 years (with the arrival of man). The poor soils of New Caledonia restrict large ground-dwelling prey, so Mekosuchus had specialized back teeth for cracking mollusk shells.
Another Holocene species is known, M. kalpokasi which lived on the island of Efate, Vanuatu approximately 3,000 years ago (again disappearing with the arrival of man).
M. whitehunterensis, the oldest known species, lived during the late Oligocene in Queensland. M. sanderi also lived in Queensland but later, during the Miocene.