Suberites

Suberites is a genus of sea sponges in the family Suberitidae. Sponges, known scientifically as Porifera, are the oldest metazoans and are used to elucidate the basics of multicellular evolution. These living fossils are ideal for studying the principle features of metazoans, such as extracellular matrix interactions, signal-receptor systems, nerv...
Found on http://en.wikipedia.org/wiki/Suberites
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