Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Wapkia is a genus of sponge with radial sclerites, known from the Middle Cambrian Burgess Shale. 32 specimens of Wapkia are known from the Greater Phyllopod bed, where they comprise 0.06% of the community.Sponges are animals of the phylum Porifera (Pore bearer) (pronounced /p 'r f r /). Their bodies consist of jelly-like mesohyl sandwiched between two thin layers of cells. While all animals have unspecialized cells that can transform into specialized cells, sponges are unique in having some specialized cells that can transform into other types, often migrating between the main cell layers and the mesohyl in the process. Sponges do not have nervous, digestive or circulatory systems.

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