Scientist Uses Fossils to Prove Historic Ohio Millstones Have French Origins
Dr. Joseph Hannibal, curator of invertebrate paleontology at The Cleveland Museum of Natural History, was lead author on research published in the Society for Sedimentary Geology journal PALAIOS
Marine microfossils found in a Paleozoic-era Ohio chert millstone from Black Hand Gorge, Licking County, Ohio. © SEPM
Millstone made of French buhr at the site of Clover Hill Mill, Trumbull County, Ohio. © SEPM
Sample of chert collected from degrading plaster top of a millstone from Trumbull County, Ohio. © SEPM
Magnified view of reproductive structure of charophyte algae from a French buhr millstone from Duncan Grist Mill, Killbuck, Ohio. © SEPM
Detail of charophyte algae found in a French buhr millstone from Duncan Grist Mill, Killbuck, Ohio. © SEPM
Latex impression of a freshwater snail found in a French buhr millstone at Lanterman’s Mill, Youngstown, Ohio. © SEPM