The three-eyed lizard enters the LRT alongside the monkey lizard

The extant, omnivorous Madagascar sand lizard,
Chalarodon madagascariensis (Peters 1854; 22cm long; Figs. 1, 2), enters the large reptile tree (LRT, 1747+ taxa) today. No surprises here. It nests with iguanid squamates between Eocene Koidosaurus and extant Pristidactylus + Basiliscus.

Figure 1. The three-eyed lizard, Chalarodon, in vivo.

Figure 1. The three-eyed lizard, Chalarodon, in vivo.

Figure 2. Chalarodon skull in 5 views. Images from Digimorph.org and used with permission.

Figure 2. Chalarodon skull in 5 views. Images from Digimorph.org and used with permission. Colors added. Note the tiny postfrontal, a vestige fused to the frontal.

The extant bush anole or monkey lizard
Polychrus marmoratus (Linneaus 1758, Figs. 3, 4) also enters the LRT, alongside Chalarodon. This arboreal jungle lizard has a very long prehensile tail and eyes that rotate independently.

Figure 3. The monkey lizard, Polychrus, in vivo.

Figure 3. The monkey lizard, Polychrus, in vivo.

Figure 3. Polychrus marmoratus skull in 4 views from Digimorph.org and used with permission. Colors added.

Figure 4. Polychrus marmoratus skull in 4 views from Digimorph.org and used with permission. Colors added.

References
Linnaeus C 1758. Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata.
Peters WCH 1854. Diagnosen neuer Batrachier, welche zusammen mit der früher (24. Juli und 17. August) gegebenen Übersicht der Schlangen und Eidechsen mitgetheilt werden. Ber. Bekanntmach. Geeignet. Verhandl. Königl.-Preuss. Akad. Wiss. Berlin 1854: 614-628.

wiki/Chalarodon_madagascariensis
wiki/Polychrus

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