What are the animals in the chorsata phylum?

The phylum Chordata includes animals that possess a notochord at some stage of their development, along with a dorsal nerve cord, pharyngeal slits, and a post-anal tail. This diverse group encompasses various subphyla, including vertebrates such as mammals, birds, reptiles, amphibians, and fish, as well as invertebrate chordates like tunicates and lancelets. Chordates are characterized by their complex structures and advanced nervous systems, which facilitate a wide range of adaptations to different environments.