Crocodylus


Crocodylus is a genus in the family Crocodylidae. The scientific name was proposed by Josephus Nicolaus Laurenti in 1768.

Taxonomy

Extant species

The 13-14 living species are:
ImageScientific nameCommon nameDistribution
Crocodylus acutus American crocodileSouthern Florida and the Atlantic and Pacific coasts of southern Mexico to South America as far south as Peru and Venezuela, Cuba, Jamaica, Hispaniola and Grand Cayman.
Crocodylus halliHall's crocodilesouthern New Guinea
Crocodylus intermedius Orinoco crocodileColombia and Venezuela
Crocodylus johnsoniFreshwater crocodileNorthern regions of Australia
Crocodylus mindorensisPhilippine crocodileNorthern Sierra Madre Natural Park within the Luzon rainforest, San Mariano, Isabela, Dalupiri island in the Babuyan Islands, Abra in Luzon and the Ligawasan Marsh, Lake Sebu in South Cotabato, Pulangi River in Bukidnon, and possibly in the Agusan Marsh Wildlife Sanctuary in Mindanao
Crocodylus moreletii Morelet's crocodile or Mexican crocodileMexico, Belize and Guatemala
Crocodylus niloticusNile crocodile or African crocodile, Israel and Syria, Somalia, Ethiopia, Uganda, Kenya, Egypt, the Central African Republic, the Democratic Republic of the Congo, Equatorial Guinea, Tanzania, Rwanda, Burundi, Zambia, Zimbabwe, Gabon, Angola, South Africa, Malawi, Mozambique, Sudan, South Sudan, Botswana, and Cameroon
Crocodylus novaeguineaeNew Guinea crocodilenorthern New Guinea
Crocodylus palustrisMugger crocodile, marsh crocodile, or Indian crocodilesouthern Iran, southern Pakistan, southern Nepal, India, Sri Lanka
Crocodylus porosus Saltwater crocodile or estuarine crocodileSoutheast Asia and Northern Australia
Crocodylus rhombifer Cuban crocodileCuba
Crocodylus siamensisSiamese crocodileIndonesia, Brunei, East Malaysia, Laos, Cambodia, Myanmar, Thailand and Vietnam.
Crocodylus suchusWest African crocodile or desert crocodileMauritania, Benin, Liberia, Nigeria, Niger, Cameroon, Chad, Central African Republic, Equatorial Guinea, Senegal, Mali, Guinea, Gambia, Burkina Faso, Ghana, Gabon, Togo, Ivory Coast and Republic of Congo
Crocodylus raninus Borneo crocodileBorneo

Fossils

Established species also include six extinct species:
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.

Evolution

Crocodylus species originated from an ancestor in the Indo-Pacific region between and. They radiated into Africa between and. This was followed about by a trans-Atlantic migration to the Americas.