Coscinotoma sp. SOLD

System: Cretaceous.

Series: Superior.

Floor: Campanian.

Origin: Holtwick, state of North Rhine-Westphalia, Germany.

Measurements: 5 cm x 3 cm

SKU: PO166 Categories: , ,

Coscynotomy It is a sponge belonging to the class Calcarea. They are the only sponges whose mineral skeleton is composed of spicules of calcium carbonate crystallized in the form of calcite or aragonite. They are believed to be the most primitive group of sponges.

 

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