- Introduction to Porifera
This site describes the evolutionary history, life history, and ecology of the sponges. Many links to other sites are available.
http://www.ucmp.berkeley.edu/porifera/porifera.html
(Added: Mon Jul 02 2001)
- Phylum Porifera
University of Michigan site on phylum Porifera. Pictures, information on the phylum. Links to the four (some identify three) classes of sponges.
http://animaldiversity.ummz.umich.edu/porifera.html
(Added: Mon Jul 02 2001)
- Phylum Porifera
Information, from the University of Minnesota.
http://www.cbs.umn.edu/class/spring2000/biol/2012/porifera.htm
(Added: Mon Jul 02 2001)
- Porifera
Arizona's Tree of Life Web Page. Pictures, references, and information on sponges.
http://Ag.Arizona.Edu/tree/eukaryotes/animals/porifera/porifera.html
(Added: Mon Jul 02 2001)
- Porifera: Fossil Record
The fossil history, life history, ecology, systematics, and morphology of sponges are described at this site.
http://www.ucmp.berkeley.edu/porifera/poriferafr.html
(Added: Mon Jul 02 2001)
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