Lacertidae

Lacertidae View in CoL View at ENA ( Fig. 20E–H View Figure 20 )

The squamosal is small in lacertids, recalling a small rod that curves ventrally at the posterior end. The latter end is represented by a single posterior process. The anterior process is pointed, whereas the posterior one is wider. Morphologically, the squamosal of lacertids is similar to the one of gekkotans ( Villa et al., 2018a), but with a longer anterior process. The posterior process is expanded in Lacerta ( Fig. 20G, H View Figure 20 ), Ophisops elegans , Po. tauricus , Po. tiliguerta , Psammodromus , some individuals of Ti. lepidus and a single specimen of Po. muralis (namely, the large and probably old MDHC 311). It can have a dermal ornamentation on its dorsal surface in large individuals of Lacerta bilineata , Lacerta schreiberi and Ti. lepidus . Arribas & Odierna (2004) described a triangular medial process that frequently occurs on the squamosal of I. martinezricai .