Crocodilus selaslophensis was named by Etheridge (1917). Its type specimen is AM F15818, a maxilla (maxillary fragment bearing six teeth), and it is a 3D body fossil. Its type locality is Vertical Bill's claim, Three Mile opal field, which is in a Cenomanian/Cenomanian terrestrial claystone in the Griman Creek Formation of Australia.

It was synonymized subjectively with Isisfordia molnari by Hart et al. (2019); it was considered a nomen dubium by Mannion et al. (2015); it was recombined as Isisfordia selaslophensis by Hart (2020), Poropat et al. (2023).