Hemichordate: Difference between revisions

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Hemichordata (Acorn worms, Pterobranchs. Marine worms) is a phylum of deuterostome animals, generally considered the sister group of our own, the Chordata. Modern forms are marine worms, commonly called acorn worms. They date back to the Lower or Middle Cambrian and include an important class of fossils called graptolites, which went extinct in the Carboniferous.

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	A phylum of deuterostome [[animalia\|animals]], generally considered the sister group of our own, the [[Chordata]]. Modern forms are marine ~~woms~~, commonly called acorn worms. They date back to the [[Cambrian]] and include an important class of fossils called [[Graptolita\|graptolites]], which went extinct in the [[Carboniferous]].		'''Hemichordata''' (Acorn worms, Pterobranchs. Marine worms) is a [[phylum]] of deuterostome [[animalia\|animals]], generally considered the sister group of our own, the [[Chordata]]. Modern forms are marine worms, commonly called acorn worms. They date back to the Lower or Middle [[Cambrian]] and include an important class of fossils called [[Graptolita\|graptolites]], which went extinct in the [[Carboniferous]].