Chordata Taxonomy Browser

Chordata Paleontology Wiki chordata Unlike its subphylum Vertebrata, Chordata features the subphyla Cephalochordata and Urochordata as two subphylums whose members exist without backbones Modern chordata An extensive vertebrate fossil record begins about 400 million years ago Embryological evidence places the phylum Chordata within the

chordata Chordata are bilaterally symmetric, deuterostome coelomates, and the vertebrate