Emergence of the Animal Kingdom

Prime purpose of this lecture is to present on Emergence of the Animal Kingdom; here briefly present on rise of the Chordates: Phylum Chordata Leading to Subphylum Vertebrata. Here alo describe on Chordate Characteristics. Chordates include the following: Fish, Reptiles, Amphibians, Birds and Mammals. Chordates has four main characteristics: notochord – support, post-anal tail, pharyngeal gill slits and dorsal hollow nerve cord.