Chordate and Vertebrate Origins. All are suspension feeding marine organisms Protochordates Phylum Hemichordata: acorn worms (Balanoglossus) Subphylum.
Early Chordates, Craniate and vertebrate origins Where does it start? Part 1.
Vertebrate Origins. Vertebrates are but a single subphylum within the chordates. What defines a chordate? Notochord at some stage of development. Dorsal.
3/28/05 1 st after spring break. Fig. 34.1 Phylum Chordata.
Early Chordates, Craniate and vertebrate origins
