«Top»  : «Science»  : «Earth Sciences»  : «Paleontology»  : «Invertebrates»  : Sponges Sites
Cretaceous Sponges «
http://www.cretaceous.de
Site Details: http://www.cretaceous.de
  Documentation and systematic description of fossil cretaceous sponges (porifera) from the campanian of misburg and höver , germany.
Sponge Reefs on the Continental Shelf «
http://www.pgc.nrcan.gc.ca/marine/9901_home.htm
Site Details: http://www.pgc.nrcan.gc.ca/marine/9901_home.htm
  Canadian geological survey program to study hexactinellid reefs.


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