Figure 2: Details of Gueragama sulamericana and comparisons.
From: A stem acrodontan lizard in the Cretaceous of Brazil revises early lizard evolution in Gondwana

Details of the lower jaw of Uromastyx acanthinurus (extant acrodontan—MCZ 27382) in labial (a) and occlusal (b) views. Scale bars, 5 mm. Details on the dentition and dentary of Gueragama sulamericana (CP.V 2,187) in occlusal (c), labial (d) and lingual (e) views. Scale bars, 1 mm. Ank., tooth ankylosis to dentary bone; L.ex., labial excavation on dentary; Pd.cr., posterodorsally ascending crest; Re.p., resorption pits; Re.t., replacement tooth; Sd.s., subdental shelf; Sh.cr., shearing crest; W., mediodistal wear facet.