Home > Science > Biology > Flora and Fauna > Animalia > Phoronida
Phoronida is a small phylum consisting of about 12 species. These "horseshoe worms" are U-shaped and live in shallow marine sediments. They filter-feed by means of a ciliated organ called a lophophore, as do the Brachiopods and Bryozoans.
http://www.ucmp.berkeley.edu/brachiopoda/phoronida.html
Introduction to the Phoronida, a small phylum related to brachiopods and bryozoans.
http://paleopolis.rediris.es/Phoronida/
Geographical distribution, systematics (including relationship to other lophophorates), list of species, scientific papers, links. Site is in English, Spanish, and French.
http://www.tolweb.org/Phoronida/2493
Illustration of the internal anatomy of a horseshoe worm and a list of species.
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