IDnature guide Groups other Kinds Asymmetronidae Branchiostomidae Overview A group of weakly swimming, eel-like benthic marine chordates; also called lancelets. Thought to be the closest living relatives of the vertebrates. Phylogeny Tree of Life Links to other sites Introduction to the Cephalochordata, University of California Museum of Paleontology Acknowledgements Ashley MacDonald, University of Georgia, Athens I thank John Pickering for his assistance with the development of this page. Supported by National Biological Information Infrastructure National Science Foundation go to Discover Life's Facebook group Updated: 2024-04-24 19:08:25 gmt Discover Life | Top © Designed by The Polistes Corporation