Heterodiadema Cretaceous Echinoid Fossil

Heterodiadema libyca

Phylum Echinodermata, Subphylum Echinozoa, Class Echinoidea, Order Diadematoida, Family Heterodiadematidae

Geological Time: Upper Cretaceous, Cenomanian Stage

Size (25.4 mm = 1 inch): Echinoid fossil is 47 mm diameter by 20 mm high

Fossil Site: Taouz, Morocco

Fossil Code: 12078

Price: Sold

Heterodiadema Cretaceous Echinoid FossilDescription: This is a nice example of a Cretaceous echinoid prepared entirely free of matrix. This order is known for the keyhole-shaped opening in the apical side of the disc, clearly seen here.

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Class Echinoidea

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