article: Salamander
links: Suborder Hellbender Axolotl Cryptobranchoidea Sirenidae Proteidae Ambystomatidae Spotted salamander Dicamptodontidae Alpine Newt Sirenoidea Holocene Plethodontidae Salamandridae Olm Rhyacotritonidae Cryptobranchidae Hynobiidae Amphiumidae Salamandroidea Respiration (physiology) Late Jurassic