Lingula Obolus Orbicula Wisconsin Minnesota Antique Fossil Print 1852
Specimens Containing Lingula Obolus and Orbicula From Near the Base of the Lowest Protozoic Sandstone of Wisconsin and Minnesota
Issued 1852 Philadelphia Lippincott Grambo & Co Illustrations to the Geological Report of Wisconsin Iowa and Minnesota by David Owen.
In G condition or better age toning light foxing.
Sheet measures c. 8 3/4 x 12 1/4.