Amphibia

Class:	Amphibia
Orders:	Anura, Caudata, Gymnophiona

Families of Anura
Allophrynidae Arthroleptidae Ascaphidae Bombinatoridae Brachycephalidae Bufonidae Centrolenidae Dendrobatidae Discoglossidae	Heleophrynidae Hemisotidae Hylidae Hyperoliidae Leiopelmatidae Leptodactylidae Megophryidae Microhylidae Myobactrachidae	Pelobatidae Pelodytes Pipidae Pseudidae Ranidae Rhacophoridae Rhinodermatidae Scaphiophryninae Sooglossidae
Families of Caudata
Ambystomatidae Amphiumidae Cryptobranchidae Dicamptodontidae	Hynobiidae Plethodontidae Proteidae	Rhyacotritonidae Salamandridae Sirenidae
Families of Gymnophiona
Caeciliaidae Ichthyophiidae	Rhinatrematidae Scolecomorphidae	Typhlonectidae Uraeotyphlidae