What is the taxonomic distinction between the Order Squamata and the Suborder Lacertilia regarding reptile groups?
Answer
Squamata is the large Order encompassing both lizards and snakes; Lacertilia is the Suborder including virtually all lizards.
The taxonomic hierarchy places Order Squamata above Suborder Lacertilia. Squamata is recognized as the largest order within Class Reptilia, encompassing the diversity found in both lizards and snakes. Lacertilia, also known as Sauria, is a suborder nested within Squamata that specifically includes almost all extant lizards, setting them apart from the snakes (Serpentes). The division noted between lizards and snakes within Squamata often hinges on features like the presence of external ear openings and movable eyelids, characteristics possessed by those in Lacertilia, including the whiptails.

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