Pachinion cylindricum FOR SALE

System: Cretaceous.
Floor: Campanian.
Origin: Holtwick, Rosendahl municipality, Coesfeld district, North Rhine-Westphalia, Germany.
Measurements: 6.8 cm x 3.9 cm x 3.5 cm
SKU: PO139 Categories: , ,

Pachinion cylindricum is an extinct species of fossilized sea sponge, belonging to the class Demospongea. Demosponges have a skeleton composed of silica spicules and fibers of the protein spongin.