What is chordetes?

Chordetes is a term that can refer to a specific group of organisms within the phylum Chordata, which includes all vertebrates and some invertebrates that exhibit characteristics such as a notochord, dorsal nerve cord, and pharyngeal slits at some stage of development. It is often used in biological classifications to describe these entities collectively. However, "chordetes" is not commonly referenced in contemporary taxonomy, and the term may be less familiar in modern scientific literature. If you meant something else by "chordetes," please provide more context for clarification.