Class

Amphibia Gray, 1825

Images
TUG 1366-4
Amphibia | Acanthostega gunnari Jarvik, 1952
Upper Devonian
TUG 1600-28
Mastodonsaurus jaegeri | Mastodonsaurus jaegeri
Upper Triassic
TUG 606-11
Mastodonsaurus jaegeri | Mastodonsaurus jaegeri
Triassic | Keuper