TABLE 1. The status of the relevant taxonomic characters (column) in Mourasuchus in each of the species of the genus (row).

Characters/Species M. amazonensis M. arendsi M. atopus M. pattersoni
Size of the external naris Wider than long Circular Circular Wider than long
Shape of the incisive foramen Tri-lobed Reversed tear-drop? Not preserved Circular
Lateromedial shape of the palatines Wide? Wide? Constricted Constricted
Shape of the jugals (lateromedially/dorsoventrally) Wide/Flattened Slender/Low Slender/Low Wide/High
Squamosal eminences ? Present Not preserved Not preserved