Fine Mazon Creek Scallop Fossil

Name: Aviculopecten mazonensis Scallop Fossils

Phylum Mollusca; Class Bivalvia; Pectinoida, Aviculopectinidae

Geological Time: Pennsylvanian (~300 m.y.a.)

Size (25.4mm=1 inch): 17 mm long by 15 mm wide in a 43 mm by 50 mm nodule

Fossil Site: Pit 11, Francis Creek shale, Braidwood, Illinois

Code: CB108

Price: $45.00 - sold


Mazon Creek Double Scallop FossilsDescription: The Mazon Creek deposits of the region near Braidwood, Illinois rival the other famous Lagerstatten of the Burgess Shale, Solnhofen, and Liaoning for the variety of detailed life preserved. Many exquisitely-preserved specimens are found in the ironstone nodules that make up the deposits. The majority of collecting areas are the spoil heaps of abandoned coal mines, the most famous of which is Peabody Coal Pit 11. Pit 11 now serves as a cooling pond for the Braidwood nuclear power plant, but with over 100 other localities, specimens still come to light. The pectinoids are commonly referred to as scallops. This specimen is a counterpart example with remarkable detail.

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