Fig. 3. Extant helodermatid lizard Heloderma horridum Wiegmann, 1829 in Helodermatid lizard from the Mio-Pliocene oak-hickory forest of Tennessee, eastern USA, and a review of monstersaurian osteoderms

Fig. 3. Extant helodermatid lizard Heloderma horridum Wiegmann, 1829 (ETVP 7081). A. Cranium showing overall pattern of osteoderms. B. Close−up of osteoderms with an acute vermiculate pattern where spicules form on the ridges. C. Close−up of the tail vertebrae and overlaying osteoderms.