Figure 7 in Phylogenetic relationships among sloths (Mammalia, Xenarthra, Tardigrada): the craniodental evidence

Figure 7. Skull and lower jaw of Hapalops. A, skull and lower jaw shown in left lateral view. B, skull shown in ventral view. Characters and states illustrated: 3(2), C1 & c1 slightly depressed relative to molariforms in lateral view; 6(1), elongate diastema present; 10(1), orthodentine forms thin layer, thinner than outer layer of cementum; 17(2), occlusal surface of molariforms with strong transverse crests; 27(1), M4 curved anteriorly in lateral view; 31(2), M1 rectangular in cross-section; 56(2), condylar surface inclined posteroventrally in lateral view; 65(2), mandibular symphysis with concave profile in lateral view; 68(1), symphyseal spout of moderate length; 73(0), symphyseal spout horizontal in lateral view; 76(1), mandible with weak fossa posterior to c1; 106(1), buccinator fossa weakly developed; 122(4), palate short, uniformly wide; 140(0), orbital portion of lacrimal larger than facial exposure; 143(1), lacrimal eminence present; 147(1), jugal and lacrimal overlap facial portion of maxilla in lateral view; 169(1), zygomatic process of squamosal horizontal or inclined slightly dorsad in lateral view; 184(1), nuchal crest overhangs occiput posteriorly; 195(0), occipital condyles elongated anteroposteriorly in ventral view; E21(1), anteroventral process of entotympanic present. [Modified from Scott (1903–4).]