Catonyx cuvieri ( Lund, 1839 )

Miño-Boilini, AR & Zurita, AE, 2015, Dimorphism in Quaternary Scelidotheriinae (Mammalia, Xenarthra, Phyllophaga), Palaeontologia Electronica (Basel, Switzerland) 736 (1), pp. 1-16 : 7-8

Catonyx cuvieri ( Lund, 1839)

( Figure 8.1-2 )

Referred material. MCL 4265, partial skull, right humerus, ulnas and left and right radii, partial right scapula, astragali and right and left calcanei, several vertebrae; MCL 4259, partial skull; MCL

MIÑO-BOILINI & ZURITA: DIMORPHISM IN SCELIDOTHERIINAE

22682, partial skull; MCL 22683, partial skull; ZMUC 1668, partial skull.

Description. Like in the other taxa discussed above, the parasagittal crests start in the nuchal crest and end at the level of the postorbital process of the frontal ( Figure 8.1 ). Some specimens (MCL 4265, MCL 4259) show a straight sagittal crest at the level of the sagittal line in parietals and frontals, whereas others (MCL 22682, MCL 22683, and ZMUC 1668) do not present the sagittal crest ( Figure 8.2 ).

Figures

FIGURE 8. Catonyx cuvieri. Skulls in dorsal view. 1, MCL 4265; 2, MCL 22683. Scale bar equals 10 mm.