Gavialis
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Gavialis
''Gavialis'' is a genus of crocodylians that includes the living gharial ''Gavialis gangeticus'' and one known extinct species, '' Gavialis bengawanicus.'' ''G. gangeticus'' comes from the Indian Subcontinent, while ''G. bengawanicus'' is known from Java. ''Gavialis'' likely first appeared in the Indian Subcontinent in the Pliocene and dispersed into the Malay Archipelago through a path called the Siva–Malayan route in the Quaternary. Remains attributed to ''Gavialis'' have also been found on Sulawesi and Woodlark Island east of the Wallace Line, suggesting a prehistoric lineage of ''Gavialis'' was able to traverse marine environments and reach places possibly as far as western Oceania. The genus ''Gavialis'' was reevaluated in 2018 based on specimens in the Natural History Museum, London that were collected in the Sivalik Hills. The author concluded that ''G. gangeticus'' and '' G. bengawanicus'' are the only two species in the genus ''Gavialis'', with '' G. hysudricus'' a ...
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Gharial
The gharial (''Gavialis gangeticus''), also known as gavial or fish-eating crocodile, is a crocodilian in the family Gavialidae and among the longest of all living crocodilians. Mature females are long, and males . Adult males have a distinct boss at the end of the snout, which resembles an earthenware pot known as a ''ghara'', hence the name "gharial". The gharial is well adapted to catching fish because of its long, narrow snout and 110 sharp, interlocking teeth. The gharial probably evolved in the northern Indian subcontinent. Fossil gharial remains were excavated in Pliocene deposits in the Sivalik Hills and the Narmada River valley. It currently inhabits rivers in the plains of the northern part of the Indian subcontinent. It is the most thoroughly aquatic crocodilian, and leaves the water only for basking and building nests on moist sandbanks. Adults mate at the end of the cold season. Females congregate in spring to dig nests, in which they lay 20–95 eggs. They guard t ...
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Gavialis Gangeticus
The gharial (''Gavialis gangeticus''), also known as gavial or fish-eating crocodile, is a crocodilian in the family Gavialidae and among the longest of all living crocodilians. Mature females are long, and males . Adult males have a distinct boss at the end of the snout, which resembles an earthenware pot known as a ''ghara'', hence the name "gharial". The gharial is well adapted to catching fish because of its long, narrow snout and 110 sharp, interlocking teeth. The gharial probably evolved in the northern Indian subcontinent. Fossil gharial remains were excavated in Pliocene deposits in the Sivalik Hills and the Narmada River valley. It currently inhabits rivers in the plains of the northern part of the Indian subcontinent. It is the most thoroughly aquatic crocodilian, and leaves the water only for basking and building nests on moist sandbanks. Adults mate at the end of the cold season. Females congregate in spring to dig nests, in which they lay 20–95 eggs. They guard t ...
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Gavialis Lewisi
''Gavialis'' is a genus of crocodylians that includes the living gharial ''Gavialis gangeticus'' and one known extinct species, '' Gavialis bengawanicus.'' ''G. gangeticus'' comes from the Indian Subcontinent, while ''G. bengawanicus'' is known from Java. ''Gavialis'' likely first appeared in the Indian Subcontinent in the Pliocene and dispersed into the Malay Archipelago through a path called the Siva–Malayan route in the Quaternary. Remains attributed to ''Gavialis'' have also been found on Sulawesi and Woodlark Island east of the Wallace Line, suggesting a prehistoric lineage of ''Gavialis'' was able to traverse marine environments and reach places possibly as far as western Oceania. The genus ''Gavialis'' was reevaluated in 2018 based on specimens in the Natural History Museum, London that were collected in the Sivalik Hills. The author concluded that ''G. gangeticus'' and '' G. bengawanicus'' are the only two species in the genus ''Gavialis'', with '' G. hysudricus'' as a ...
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Gavialis Leptodus
''Gavialis'' is a genus of crocodylians that includes the living gharial ''Gavialis gangeticus'' and one known extinct species, '' Gavialis bengawanicus.'' ''G. gangeticus'' comes from the Indian Subcontinent, while ''G. bengawanicus'' is known from Java. ''Gavialis'' likely first appeared in the Indian Subcontinent in the Pliocene and dispersed into the Malay Archipelago through a path called the Siva–Malayan route in the Quaternary. Remains attributed to ''Gavialis'' have also been found on Sulawesi and Woodlark Island east of the Wallace Line, suggesting a prehistoric lineage of ''Gavialis'' was able to traverse marine environments and reach places possibly as far as western Oceania. The genus ''Gavialis'' was reevaluated in 2018 based on specimens in the Natural History Museum, London that were collected in the Sivalik Hills. The author concluded that ''G. gangeticus'' and '' G. bengawanicus'' are the only two species in the genus ''Gavialis'', with '' G. hysudricus'' as a ...
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Gavialis Curvirostris
''Gavialis'' is a genus of crocodylians that includes the living gharial ''Gavialis gangeticus'' and one known extinct species, '' Gavialis bengawanicus.'' ''G. gangeticus'' comes from the Indian Subcontinent, while ''G. bengawanicus'' is known from Java. ''Gavialis'' likely first appeared in the Indian Subcontinent in the Pliocene and dispersed into the Malay Archipelago through a path called the Siva–Malayan route in the Quaternary. Remains attributed to ''Gavialis'' have also been found on Sulawesi and Woodlark Island east of the Wallace Line, suggesting a prehistoric lineage of ''Gavialis'' was able to traverse marine environments and reach places possibly as far as western Oceania. The genus ''Gavialis'' was reevaluated in 2018 based on specimens in the Natural History Museum, London that were collected in the Sivalik Hills. The author concluded that ''G. gangeticus'' and '' G. bengawanicus'' are the only two species in the genus ''Gavialis'', with '' G. hysudricus'' as a ...
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Gavialis Breviceps
''Gavialis'' is a genus of crocodylians that includes the living gharial ''Gavialis gangeticus'' and one known extinct species, '' Gavialis bengawanicus.'' ''G. gangeticus'' comes from the Indian Subcontinent, while ''G. bengawanicus'' is known from Java. ''Gavialis'' likely first appeared in the Indian Subcontinent in the Pliocene and dispersed into the Malay Archipelago through a path called the Siva–Malayan route in the Quaternary. Remains attributed to ''Gavialis'' have also been found on Sulawesi and Woodlark Island east of the Wallace Line, suggesting a prehistoric lineage of ''Gavialis'' was able to traverse marine environments and reach places possibly as far as western Oceania. The genus ''Gavialis'' was reevaluated in 2018 based on specimens in the Natural History Museum, London that were collected in the Sivalik Hills. The author concluded that ''G. gangeticus'' and '' G. bengawanicus'' are the only two species in the genus ''Gavialis'', with '' G. hysudricus'' as a ...
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Gavialis Hysudricus
''Gavialis'' is a genus of crocodylians that includes the living gharial ''Gavialis gangeticus'' and one known extinct species, '' Gavialis bengawanicus.'' ''G. gangeticus'' comes from the Indian Subcontinent, while ''G. bengawanicus'' is known from Java. ''Gavialis'' likely first appeared in the Indian Subcontinent in the Pliocene and dispersed into the Malay Archipelago through a path called the Siva–Malayan route in the Quaternary. Remains attributed to ''Gavialis'' have also been found on Sulawesi and Woodlark Island east of the Wallace Line, suggesting a prehistoric lineage of ''Gavialis'' was able to traverse marine environments and reach places possibly as far as western Oceania. The genus ''Gavialis'' was reevaluated in 2018 based on specimens in the Natural History Museum, London that were collected in the Sivalik Hills. The author concluded that ''G. gangeticus'' and '' G. bengawanicus'' are the only two species in the genus ''Gavialis'', with '' G. hysudricus'' as a ...
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Gavialis Bengawanicus Skull
''Gavialis'' is a genus of crocodylians that includes the living gharial ''Gavialis gangeticus'' and one known extinct species, '' Gavialis bengawanicus.'' ''G. gangeticus'' comes from the Indian Subcontinent, while ''G. bengawanicus'' is known from Java. ''Gavialis'' likely first appeared in the Indian Subcontinent in the Pliocene and dispersed into the Malay Archipelago through a path called the Siva–Malayan route in the Quaternary. Remains attributed to ''Gavialis'' have also been found on Sulawesi and Woodlark Island east of the Wallace Line, suggesting a prehistoric lineage of ''Gavialis'' was able to traverse marine environments and reach places possibly as far as western Oceania. The genus ''Gavialis'' was reevaluated in 2018 based on specimens in the Natural History Museum, London that were collected in the Sivalik Hills. The author concluded that ''G. gangeticus'' and '' G. bengawanicus'' are the only two species in the genus ''Gavialis'', with '' G. hysudricus'' as a ...
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Gavialis Browni
''Gavialis browni'' is an extinct species of the crocodylian genus ''Gavialis'' and a close relative of the living gharial ''Gavialis gangeticus''. ''G. browni'' lived about 5 million years ago in the Sivalik Hills of Pakistan. ''G. browni'' can be distinguished from ''G. gangeticus'' by its more closely spaced eyes and a narrower frontal bone. The species was named in 1932 by paleontologist Charles Mook. Mook described it as a transitional form between the most primitive ''Gavialis'' species, ''Gavialis dixoni'', and the most advanced, the modern gharial (although ''G. dixoni'' is now placed outside ''Gavialis'' in its own genus, ''Dollosuchus'', and may be more closely related to crocodiles than to the gharial). ''G. browni'' has a longer snout with more teeth than ''Dollosuchus'', but it is not as long and does not have as many teeth as that of the gharial. ''G. browni'' has also been proposed to be moved to a genus other than ''Gavialis''. Below is a cladogram that shows the ...
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Gavialids
Gavialidae is a family of large semiaquatic crocodilians with elongated, narrow snouts. Gavialidae consists of two living species, the gharial (''Gavialis gangeticus'') and the false gharial (''Tomistoma schlegelii''), both occurring in Asia. Many extinct members are known from a broader range, including the recently extinct ''Hanyusuchus''. Gavialids are generally regarded as lacking the jaw strength to capture the large mammalian prey favoured by crocodiles and alligators of similar size so their thin snout is best used to catch fish, however the false gharial has been found to have a generalist diet with mature adults preying upon larger vertebrates, such as ungulates. Taxonomy The family Gavialidae was proposed by Arthur Adams in 1854 for reptiles with a very long and slender muzzle, webbed feet and nearly equal teeth. It is currently recognized as a crown group, meaning that it only includes the last common ancestor of all extant (living) gavialids (the gharial and false gha ...
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Gavialis Papuensis
''Ikanogavialis'' is an extinct genus of gavialid crocodilian. Fossils have been found in the Urumaco Formation in Urumaco, Venezuela and the Solimões Formation of Brazil. The strata from which remains are found are late Miocene in age, rather than Pliocene as was once thought. A possible member of this genus survived into the Late Holocene on Muyua or Woodlark Island in Papua New Guinea. Description ''Ikanogavialis'' had a dorsoventrally deep snout and a distinctive notch between the dentary and maxillary alveoli. The external nares projected anterodorsally from the rostrum. This can be seen as a plesiomorphic characteristic in crocodilians, but given that the earliest gavialoids possessed dorsally projecting external nares, this feature can be seen as having been a reversal from the gavialoid apomorphy back to the crocodilian plesiomorphy rather than having been directly obtained from an early crocodilian ancestor. Species The type species of ''Ikanogavialis'' is ''I. game ...
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Gavialis Bengawanicus
''Gavialis bengawanicus'' is an extinct species of crocodilian that is related to the modern Indian gharial. Fossils have been found in Thailand and Indonesia. The type locality is at Trinil. The presence of this species in Thailand may provide an explanation for the distribution of fossil gharials that appears disjunct, covering Pakistan and Java but not the connecting areas. The fossils suggest that gharials may have dispersed from Indo-Pakistan to Indonesia through Thailand without having to resort to marine routes. Below is a cladogram that shows the proposed phylogeny within Gavialidae, including extinct members, and how ''Gavialis bengawanicus'' is most closely related to the living gharial The gharial (''Gavialis gangeticus''), also known as gavial or fish-eating crocodile, is a crocodilian in the family Gavialidae and among the longest of all living crocodilians. Mature females are long, and males . Adult males have a distinct b ...: References Gavialidae ...
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