The Saltwater crocodile (Crocodylus porosus) is the largest living reptile and crocodilian known. It was hunted for its skin throughout its range up to the 1970s and is threatened by illegal killing and habitat loss. It is regarded as dangerous to...
The American alligator (Alligator mississippiensis) is a large crocodilian reptile native to the Southeastern United States. It is one of the two extant species in the genus Alligator, and is probably the largest species within its family...
The mugger (Crocodylus palustris ) is a crocodile of medium to large size with the broadest snout of all the living members of the genus Crocodylus. It lives in the Indian subcontinent as well as other countries in southern Asia. Like most...
The Nile crocodile (Crocodylus niloticus) is a large crocodilian that lives in freshwater habitats in Africa. There it is present in 26 countries. The Nile crocodile is one of the most dangerous species of crocodile and is responsible for hundreds...
The American crocodile (Crocodylus acutus) is the most widespread of the four extant species of crocodiles from the Americas. It is also one of the largest crocodile species. Males can reach lengths of 6.1 m (20 ft 0 in), weighing up to 907 kg...
Gharials (Gavialis gangeticus ) are one of the biggest crocodilians (a group that includes alligators, crocodiles, and caimans) and have the narrowest snout of these different species. Their common name is due to the bulbous nasal snout of adult...
The Black caiman (Melanosuchus niger) is a large crocodilian and, along with the American alligator, is one of the largest extant members of the family Alligatoridae and order Crocodilia. The Black caiman is the largest predator in the Amazon...
The Chinese alligator (Alligator sinensis) is one of the smallest species of crocodilian. It has been a part of Chinese literature since the third century. In the late 1200s, Marco Polo became the first person outside of China to write about it. In...
The tomistoma (Tomistoma schlegelii) is a freshwater crocodalian native to Southeast Asia. The tomistoma has quite an unusual appearance and about this species, there is not much information. It has one of the slimmest snouts of any living...
The Freshwater crocodile (Crocodylus johnsoni) is a species of crocodile found only in the northern regions of Australia. Unlike their much larger Australian relative, the Saltwater crocodile, Freshwater crocodiles are not known as man-eaters,...
Cuvier's dwarf caiman (Paleosuchus palpebrosus ) is a small crocodilian in the alligator family from northern and central South America. It is sometimes kept in captivity as a pet and may be referred to as the Wedge-head caiman by the pet trade....
The Orinoco crocodile (Crocodylus intermedius) is a critically endangered crocodile. Its population is very small, and they can only be found in the Orinoco river basin in Colombia and Venezuela. Extensively hunted for their skins in the 19th and...
The Spectacled caiman (Caiman crocodilus) is a crocodilian with large range and population. It is native to much of Latin America and has been introduced to the United States, Cuba, and Puerto Rico. Its common name comes from a bony ridge between...
The Cuban crocodile (Crocodylus rhombifer ) is a small-medium species of crocodile endemic to Cuba. Despite its modest size, it is a highly aggressive animal, and potentially dangerous to humans. The Cuban crocodile is of interest to biologists, for...
The Philippine crocodile (Crocodylus mindorensis ), also known as the Mindoro crocodile, the Philippine freshwater crocodile, the bukarot in Ilocano, and more generally as a buwaya in most Filipino lowland cultures, is one of two species of...
The Siamese crocodile (Crocodylus siamensis) is a freshwater crocodilian native to regions in South-East Asia. It is amongst the most endangered crocodiles that live in the wild, although there are many of them in captivity. The only individuals in...
The West African crocodile (Crocodylus suchus) is often confused with the larger and more aggressive Nile crocodile. This successful predator has a streamlined body that enables it to swim swiftly; it also tucks its feet to the side while swimming,...
Morelet's crocodile (Crocodylus moreletii), also known as the Mexican crocodile or Belize crocodile, is a modest-sized crocodilian found only in fresh waters of the Atlantic regions of Mexico, Belize and Guatemala. It usually grows to about 3 metres...
The yacare caiman (Caiman yacare ), also known commonly as the jacare caiman, Spanish yacaré, Paraguayan caiman, piranha caiman, red caiman, southern spectacled caiman, jacaré in Portuguese, and îakaré in Old Tupi, is a species of caiman, a...
The Broad-snouted caiman (Caiman latirostris) is a medium-sized crocodilian found in South America. The most notable physical characteristic of this species is the broad snout derived from its name. The snout is well adapted to rip through the dense...
The West African slender-snouted crocodile (Mecistops cataphractus) is a critically endangered species of African crocodile. It is one of five species of crocodile in Africa. The scientific name cataphractus is retained for the West African species...
The dwarf crocodile (Osteolaemus tetraspis ), also known as the African dwarf crocodile, broad-snouted crocodile (a name more often used for the Asian mugger crocodile) or bony crocodile, is an African crocodile that is also the smallest extant...
The New Guinea crocodile (Crocodylus novaeguineae ) is a small species of crocodile found on the island of New Guinea north of the mountain ridge that runs along the centre of the island. The population found south of the mountain ridge, formerly...
The smooth-fronted caiman (Paleosuchus trigonatus ), also known as Schneider's dwarf caiman or Schneider's smooth-fronted caiman, is a crocodilian from South America, where it is native to the Amazon and Orinoco Basins. It is the second-smallest...
Alligator prenasalis is an extinct species of alligator from the Late Eocene period. It is well known, with many fossils having been collected from the Chadron and Brule Formations in South Dakota. The species was first named in 1904, but was...
Alligator olseni (common name Olsen's Alligator, named after Russel Olsen) is an extinct species of alligator. They lived in the Early Miocene period, around 20.4–15.97 million years ago and possibly earlier. Their range was principally in what is...
Crocodylus thorbjarnarsoni is an extinct species of crocodile from the Pliocene and Pleistocene of the Turkana Basin in Kenya. It is closely related to the species Crocodylus anthropophagus, which lived during the same time in Tanzania....
Crocodylus anthropophagus is an extinct species of crocodile from the Pleistocene of Tanzania. It lived 1.84 million years ago. It was a large-sized predator reaching a length of 5 m (16 ft).
Gavialis pachyrhynchus is an extinct species of gavialid from the Miocene of India. Although only known from fragmentary jaw material, the size of this material is substantially larger than comparable bones in large gharials.A 2018 re-evaluation of...
Tomistoma cairense is an extinct species of gavialoid crocodilian from the Lutetian stage of the Eocene era. It lived in North East Africa, especially Egypt. Remains of T. cairense have been found in the Mokattam Formation, in Mokattam, Egypt....
