Lissamphibia

The subclass Lissamphibia includes all living amphibians. They are classified in three orders:

• the Anura: frogs, including toads
• the Caudata or Urodela: salamanders, including newts
• the Gymnophiona or Apoda: the limbless caecilians.

Lissamphibia
The fire salamander
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Subphylum:	Vertebrata
Superclass:	Tetrapoda
Class:	Amphibia
Subclass:	Lissamphibia Haeckel, 1866
Orders
Anura Caudata Gymnophiona

Although the ancestry of each group is controversial,^[1] all share certain common characteristics. This indicates they evolved from a common ancestor and so form a clade.

References

1. Carroll, Robert 2009. The rise of amphibians: 300 million years of evolution. Johns Hopkins University Press. ISBN 978-0-8018-9140-3