Click below for pages on deuterostomes:
Deuterostomia: deuterostomes
Hemichordata: acorn worms and graptolites
Echinodermata: echinoderms
Cincta
Soluta
Blastozoa
Stylophora
Crinoidea: sea lilies and feather stars
Echinozoa: sea urchins and sea cucumbers
Urochordata: sea squirts
Craniata: vertebrates
Cyclostomata: hagfishes and lampreys
Conodonta: conodonts
Pteraspidomorphi: pteraspidomorphs
Osteostraci: osteostracans
Gnathostomata: jawed vertebrates
Acanthodii: spiny sharks
Actinopterygii: ray-finned fishes (table of contents)
Sarcopterygii: lobe-finned fishes and terrestrial vertebrates (table of contents)