Ceratodus is an extinct genus of freshwater lungfish that was found worldwide during the Mesozoic Era. It has been described as a "catch all", and a "form genus" used to refer to the remains, typicall

Potamoceratodus is an extinct genus of lungfish belonging to the family Ceratodontidae known from the Late Jurassic Morrison Formation of Colorado, USA. It was first named by Jason D. Pardo, Adam K. H