Saltwater crocodile: 70 years, Nile crocodile: 70 – 100 years
Saltwater crocodile: 24 – 29 km/h
Saltwater crocodile: 400 – 1,000 kg
Saltwater crocodile: 4.3 – 5.2 m, Nile crocodile: 4.2 m, American crocodile: 4.1 – 4.8 m, Mugger crocodile: 3.2 m
Saltwater crocodile, Nile crocodile, American crocodile, Siamese crocodile, Mugger crocodile
Crocodylus is one of three genera from the subfamily Crocodylinae of the family Crocodylidae.
The 13 living species are:American crocodile, Crocodylus acutus
Slender-snouted crocodile, Crocodylus cataphractus - studies in DNA and morphology suggest this species may be more basal than Crocodylus and therefore belongs in its own genus, Mecistops.
Orinoco crocodile, Crocodylus intermedius
Freshwater crocodile, Crocodylus johnsoni
Philippine crocodile, Crocodylus mindorensis
Morelet's crocodile or Mexican crocodile, Crocodylus moreletii
Nile crocodile or African crocodile, Crocodylus niloticus (the subspecies found in Madagascar is sometimes called the black crocodile)
New Guinea crocodile, Crocodylus novaeguineae
Mugger crocodile, marsh crocodile, or Indian crocodile, Crocodylus palustris
Saltwater crocodile or estuarine crocodile, Crocodylus porosus
Cuban crocodile, Crocodylus rhombifer
Siamese crocodile, Crocodylus siamensis
West African crocodile or desert crocodile, Crocodylus suchus
Crocodylus raninus (Considered as a synonym of Crocodylus porosus, its status remains unclear.)
Established species also include six extinct species:† Crocodylus anthropophagus is an extinct crocodile from Plio-Pleistocene of Tanzania.
† Crocodylus bugtiensis is an extinct crocodile from Pakistan
† Crocodylus checchiai is an extinct crocodile from Late Miocene of Kenya.
† Crocodylus falconensis is an extinct crocodile from Early Pliocene of Venezuela.
† Crocodylus palaeindicus is an extinct crocodile the Miocene to the Pleistocene of southern Asia.
† Crocodylus thorbjarnarsoni is an extinct crocodile from Plio-Pleistocene of Kenya.
The cladogram below follows the topology from a 2011 analysis of mitochondrial DNA sequences by Robert W. Meredith, Evon R. Hekkala, George Amato and John Gatesy.
The cladogram below follows the topology from a 2012 analysis of morphological traits by Christopher A. Brochu and Glenn W. Storrs. Many extinct species of Crocodylus might represent different genera. C. suchus was not included, because its morphological codings were identical to these of C. niloticus. However, the authors suggested that it could be explained by their specimen sampling, and considered the two species to be distinct.
Crocodylus species originated from an ancestor in the Indo-Pacific region between 9 million years ago and 16 million years ago. They radiated into Africa between 8 million years ago and 12 million years ago. This was followed between 4 million years ago to 8 million years ago by a trans-Atlantic migration to the Americas.