Understanding Chordate Evolution In Section 33-1
Romer's diagram on the probable course of chordate evolution. "From a from www.researchgate.net Introduction If you’re a biology student, you must have heard about chordates. Chordates refer to a group of animals that possess a notochord, dorsal nerve cord, pharyngeal slits, and a post-anal tail. The chordates include vertebrates, tunicates, and lancelets. In this article, […]