title: Origin of the isthmus? A comparison of the brains of lancelets and vertebrates.
authors.affiliation: Neurobiology Unit, Scripps Institution of Oceanography, and Department of Neurosciences, School of Medicine, University of California, San Diego, La Jolla, California 92093-0201, USA. rgnorthcutt@ucsd.edu
authors.forename: R Glenn
authors.initials: RG
authors.lastname: Northcutt
mesh_terms: D000818:Animals; D001921:Brain / Q000196:embryology / Q000254:growth & development*; D002816:Chordata, Nonvertebrate / Q000196:embryology / Q000254:growth & development*; D006801:Humans; D014714:Vertebrates / Q000196:embryology / Q000254:growth & development*