脊索动物门
Chordata \Chor*da"ta\, n. pl. [NL., fr. L. chorda cord.] (Zo["o]l.) A comprehensive division of animals including all Vertebrata together with the Tunicata, or all those having a dorsal nervous cord.
Chordata n : comprises true vertebrates and animals having a notochord [syn: {phylum Chordata}]