Encyclopedia > Phoronida

  Article Content

Phoronid

Redirected from Phoronida

Phoronids
Scientific classification
Kingdom: Animalia
Phylum: Phoronida
Class: none defined
Order: none defined
Family: Phoronidae
Genera
   Phoronis[?]
   Phoronopsis[?]
Phoronids (Phoronida) are a relatively small animal phylum: twelve species are known, in two genera, Phoronis[?] and Phoronopsis[?]. Phoronids are worm-shaped, but with a gut that loops and exits the body near the mouth, instead of running the length of the animal, as in annelids (and many vertebrates). Phoronids are found in marine sediments, ranging from the intertidal zone[?] to 400 meters depth, but are commonest at depths of less than 70 meters. The adults secrete chitinous tubes in which to live. They feed using a lophophore, a ciliated structure that surrounds the mouth.

Together with the Ectoprocta and Brachiopoda, the phoronids belong to the lophophorates, sometimes treated as a single phylum. There are no known phoronid fossils.

References
http://www.itis.usda.gov
TSN (phylum): 155456
TSN (family): 155457



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Chester, Vermont

... a family is $47,083. Males have a median income of $32,744 versus $26,114 for females. The per capita income for the town is $19,661. 7.0% of the population and 3.8% o ...