Hemichordate

(Reguidit frae Protochordata)

Hemichordata is a phylum o marine deuterostome animals, generally considered the sister group o the echinoderms.

Hemichordate
Temporal range: Miaolingian–Recent
Acorn wirm, a hemichordate.
Scientific classification e
Kinrick: Animalia
Superphylum: Deuterostomia
Phylum: Hemichordata
Bateson, 1885
Cless

Pterobranchia
Enteropneusta
Planctosphaera pelagica

And See text.