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 | | Living salamanders are divided taxonomically into ten taxonomic families based upon phylogeny and anatomical features: Ambystomatidae (mole salamanders), Amphiumidae (amphiumas), Cryptobranchidae (hellbenders), Dicamptodontidae (Pacific giant salamanders), Hynobiidae, Plethodontidae (lungless salamanders), Proteidae (mudpuppies), Rhyacotritonidae (torrent salamanders), Salamandridae (true salamanders and newts) and Sirenidae (sirens). |
 | | These families are grouped into four taxonomic suborders as follows: Cryptobranchoidea (Cryptobranchidae, Hynobiidae), Karauroidea (Karauridae), Salamandroidea (Ambystomatidae, Amphiumidae, Batrachosauroididae, Dicamptodontidae, Plethodontidae, Prosirenidae, Proteidae, Rhyacotritonidae, Salamandridae, Scapherpetontidae) and Sirenoidea (Sirenidae). |
 | | A few Mesozoic fossil salamanders (genera Comonecturoides, Galverpeton and Hylaeobatrachus, each containing a single species) have not been assigned to taxonomic families or suborders. |
| ag.arizona.edu /ENTO/tree/eukaryotes/animals/chordata/caudata/Caudata.nex (1289 words) |
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