Amphibians, Fossil.

Amphibians / by: (Language materials, printed)

Gaining ground = the origin and evolution oftetrapods / by: (Electronic resources)

Amphibian evolution = the life of early land vertebrates / by: (Electronic resources)

Amphibians.

Leg- Evolution.

Amphibians- Evolution

Amphibians- Evolution.

Paleontology- Devonian.

Amphibians, Fossil- Juvenile literature.

Paleontology- Carboniferous.

Amphibians, Fossil.

Lungfishes, Fossil.

Paleobiology.