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Amphibians are ectothermic, anamniotic, four-limbed vertebrate animals that constitute the class Amphibia. In its broadest sense, it is a paraphyletic group encompassing all tetrapods excluding the amniotes (tetrapods with an amniotic membrane , such as modern reptiles , birds and mammals ).
The Lissamphibia (from Greek λισσός (lissós, "smooth") + ἀμφίβια (amphíbia), meaning "smooth amphibians") is a group of tetrapods that includes all modern amphibians. Lissamphibians consist of three living groups: the Salientia ( frogs and their extinct relatives), the Caudata ( salamanders and their extinct relatives), and the ...
Amphibians are ectothermic, tetrapod vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia . They inhabit a wide variety of habitats , with most species living within terrestrial , fossorial , arboreal or freshwater aquatic ecosystems .
An amphibian is a member of the class Amphibia of ectothermic, tetrapod vertebrates Amphibian may also refer to: Amphibian (comics), two superheroes from Marvel Comics "Amphibian" (song), by Björk; Amphibious vehicle, a vehicle that can operate on water or land Amphibious aircraft, an aircraft for land, air, and sea
It was ranked as an order under class Amphibia by Watson in 1920 and as a superorder by Romer in 1947. [ 69 ] [ 70 ] An alternative name, Stegocephalia was created in 1868 by American paleontologist Edward Drinker Cope , from Greek stego cephalia —"roofed head", and refer to anapsid skull and the copious amounts of dermal armour some of the ...
Temnospondyli (from Greek τέμνειν, temnein 'to cut' and σπόνδυλος, spondylos 'vertebra') or temnospondyls is a diverse ancient order of small to giant tetrapods—often considered primitive amphibians—that flourished worldwide during the Carboniferous, Permian and Triassic periods, with fossils being found on every continent.
This is a list of amphibians found in the United States. A total of 306 amphibian species have been recorded in the United States , [ 1 ] 2 of which are now extinct. [ 2 ] This list is derived from the database listing of Amphibian Species of the World .
List of amphibian genera lists the vertebrate class of amphibians by genus, spanning two superorders. Superorder Batrachia. Order Anura. Frogs Suborder ...