Scelidotheriinae

PP = 100, age = 17.55 Mya (14.03–20.82).

The clade includes the genera Neonematherium, Sibyllotherium, Valgipes, Proscelidodon, Catonyx and Scelidotherium, and was recovered in all analyses performed in this study. The relationships among those genera were consistent among analyses: ( Neonematherium, ( Sibyllotherium, ( Valgipes, ( Proscelidodon, ( Catonyx, Scelidotherium))))). It was recovered in all but one analysis, par_EW, in which Neonematherium and Sibyllotherium are in a polytomy with the remaining scelidotheriines.

Scelidotheriinae was supported by six synapomorphies, all but one recovered by both methods: flat occlusal surface of molariforms; subtriangular Mf1 cross-section (BI); roughly horizontal profile of dorsal surface of the skull, in lateral view; presence of ventral extension in maxilla for dental alveoli; medial palatal process of maxilla extending anterior to lateral process; and well-developed, free-standing paracondylar processes.