which are able to open their mouths very widely to accommodate comparatively large prey. Squamates are the most variably sized living reptiles, ranging from the 16 mm dwarf gecko (Sphaerodactylus ariasae) to the 6.5 m reticulated python (Malayopython reticulatus). The now-extinct mosasaurs reached lengths over 14 m.

Among other reptiles, squamates are most closely related to