Thursday, June 20, 2013

Cnemidiastrum stellatum from Poland

Following up on my previous post, here is another sponge that I think is Cnemidiastrum stellatum. It is from near Zalas, Poland and is also from the Jurassic (Oxfordian stage) like the previous specimen.

These are views of the sides of this conical shaped specimen.

I'm guessing the large hole on the side is the result of another creature living within the structure of the sponge?

Top surface
Detail of the upper portion

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