Urodele & Gymnophiona I.General Amphibian Characteristics II.Salamanders A.Characteristics B.Ecological Role of Salamanders Diverse Life Histories C.Courtship.
VERTEBRATES and their Classification Vertebrate Classes: Pisces: (fish) Agnatha (jawless fish) Chondricthes(boneless fish Osteicthes(boney fish) Tetrapoda.
