EVERYDAY SCIENCE

Detailed explanation-1: -Today amphibians are represented by frogs and toads (order Anura), newts and salamanders (order Caudata), and caecilians (order Gymnophiona).

Detailed explanation-2: -Caudata, also called Urodela, one of the major extant orders of the class Amphibia. It includes salamanders and newts. The relatively small and inconspicuous salamanders are important members of north temperate and some tropical ecosystems, in which they are locally abundant and play important roles.

Detailed explanation-3: -Urodela (Caudata, salamanders, and newts) and the Gymnophiona (Apoda, caecilians) are members of the vertebrate subclass Lissamphibia (class Amphibia).

Detailed explanation-4: -salamander, (order Caudata), any member of a group of about 740 species of amphibians that have tails and that constitute the order Caudata. The order comprises 10 families, among which are newts and salamanders proper (family Salamandridae) as well as hellbenders, mud puppies, and lungless salamanders.