Genus-Animalia: Crocodylus

Crocodylus is a genus of true crocodiles in the family Crocodylidae.

Evolution

Crocodylus likely originated in Africa and radiated outwards towards Southeast Asia and the Americas, although an Australia/Asia origin has also been considered. Phylogenetic evidence supports Crocodylus diverging from its closest recent relative, the extinct Voay of Madagascar, around 25 million years ago, near the Oligocene/Miocene boundary.

Reference: Wikipedia