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The list below largely follows Darrel Frost's Amphibian Species of the World (ASW), Version 5.5 (31 January 2011). Another classification, which largely follows Frost, but deviates from it in part is the one of AmphibiaWeb , which is run by the California Academy of Sciences and several of universities.
Classification varies according to the preferred phylogeny of the author and whether they use a stem-based or a node-based classification. Traditionally, amphibians as a class are defined as all tetrapods with a larval stage, while the group that includes the common ancestors of all living amphibians (frogs, salamanders and caecilians) and all ...
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 ).
File-Class amphibian and reptile articles of NA-importance (81 P) Pages in category "File-Class amphibian and reptile pages" The following 81 pages are in this category, out of 81 total.
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Pages for logged out editors learn more. ... Print/export Download as PDF ... List of amphibian genera lists the vertebrate class of amphibians by genus, spanning ...
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 .
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