includes two divisions, Agnatha and Gnathostomata. Agnatha comprises of the class Cyclostomata. Gnathostomata includes jawed fishes (Pisces) and Tetrapoda which includes the classes amphibia, reptilia, aves and mammals. fox), Macaca (Monkey), Canis (Dog), Felis (Cat), Elephas (Elephant), Equus (Horse), Delphinus (Common dolphin) Balaenoptera (Blue whale), Panthera tigris (Tiger), Panther leo (Lion), Homo sapiens (Human) Bos (Cattle) (Figure .
). metanephric and are ureotelic . All are homeothermic, sexes are separate and fertilization is internal. Examples Oviparous- Ornithorhynchus (Platypus), Viviparous- Macropus (Kangaroo), Pteropus (Flying Figure .
Examples of Mammals Monkeys Elephant Whale Platypus Dolphin Kangaroo Bat Pangolin Loris