Question

Classify hemichordata upto classes with examples

Answer 1

Answer:

Hemichordata are divided into two classes: the Enteropneusta, commonly called acorn worms, and the Pterobranchia, which may include the graptolites. A third class, Planctosphaeroidea, is proposed based on a single species known only from larvae. The phylum contains about 120 living species.

Answer 2

Answer:

Phylum Hemichordata has been divided into following four classes :

1. Enteropneusta (e.g : Ptychodera)
2. Pterobranchia (e.g : Atubaria)
3. Planctosphaeroidea (e.g : Rhabdopleura)
4. Gdaptolita (e.g : Dendrograptus)