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Lepidosauria
Lepidosaurs
10
Biology
Undergraduate 3
03/26/2012

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Term
Rhyncocephalia
Definition
Order: tuataras. Acrodont teeth and heterodont dentition. Diastema between premaxillary and maxillary teeth. Osteoderms and true hemipenes absent. New Zealand.
Term
Sphenodontidae
Definition
Family: tuataras. Acrodont teeth and heterodont dentition. Diastema between premaxillary and maxillary teeth. Osteoderms and true hemipenes absent. New Zealand.
Term
Squamata
Definition
Order: scaled reptiles, true hemipenes present, vomeronasal (Jacobson's) organ, egg tooth, diapsid skull.
Term
Iguania
Definition
Suborder: modified row of mid-dorsal scales, fleshy tongue.
Term
Crotaphytidae
Definition
Family: Moderately large lizards of mesic to arid areas that consume insects and some
vertebrates. highly mobile predators with long legs, long tails, and large heads
Term
Iguanidae
Definition
Family: Moderate to large in size, herbivorous, and some with large dorsal crests. These
lizards exhibit several different ecomorphs.
Term
Phrynnosomatidae
Definition
Family: diverse both in morphology and ecology.
Keeled spiny scales
Short snouts
Term
Polychrotidae
Definition
Family: includes anolis lizards, have developed toe pads, mostly arboreal.
Term
Agamidae
Definition
Family: old world iguanas, all ecomorphs present.
Term
Chamaeleonidae
Definition
Family: Skull often extended posteriorly
Body strongly laterally compressed
Eyes protruding, and independently moveable
Opposable digits
Zygodactylus feet
Tongue highly projectile
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