title: How ancient is the adult swimming capacity in the lineage leading to Euchordates?
authors.affiliation: Departamento de Anatomía y Biología del Desarrollo, Facultad de Medicina, Universidad de Chile, Independencia 1027, Casilla 70.079-Santiago 7, Santiago, Chile. aovargas@med.uchile.cl
authors.forename: Alexander O
authors.initials: AO
authors.lastname: Vargas
authors.forename: Francisco
authors.initials: F
authors.lastname: Aboitiz
mesh_terms: D000818:Animals; D002816:Chordata, Nonvertebrate / Q000145:classification* / Q000502:physiology*; D019143:Evolution, Molecular; D005580:Fossils; D010802:Phylogeny; D013550:Swimming / Q000502:physiology*