In biology, a phylum (plural: phyla) is a taxonomic rank below kingdom and above class. "Phylum" is equivalent to the botanical term division. Phylum is one of the major biological divisions called Taxa. Although "phylum" is often used as if it were a clearly defined term, no satisfactory definition of it exists.
- Retrieved 2008-10-04. Life sciences. The American Heritage New Dictionary of Cultural Literacy (third ed.). Houghton Mifflin Company. 2005. "Phyla in the plant kingdom are frequently called divisions."
|This page uses Creative Commons Licensed content from Wikipedia (view authors).|