The two subclasses of extinct organisms within this class are Labyrinthodontia and Lepospondyli. These animals are the first to develop eardrums and use both buccal pumping and gas exchange on their s
The two subclasses of extinct organisms within this class are Labyrinthodontia and Lepospondyli. These animals are the first to develop eardrums and use both buccal pumping and gas exchange on their skin for respiration. Some of these animals, such as axolotls, retain gills in the adult, though most organisms in this class eliminate gills in favor of lungs through the process of metamorphosis, which changes tadpoles to frogs. For 10 points, identify this class of ectothermic organisms that include salamanders.
The two subclasses of extinct organisms within this class are Labyrinthodontia and Lepospondyli.
Amphibians