Septarian nodule Location: U.S. National Museum of Natural History, Washington, DC Year: 2013 Merckdigitals catalogue number: 22-81959 Comments: Weymouth, England

Septarian nodule (detail of above) Location: U.S. National Museum of Natural History, Washington, DC Year: 2013 Merckdigitals catalogue number: 22-81961 Comments: Weymouth, England

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