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Sandstone with gastropods

Turritella mortoni, Paleocene Epoch. What time is it? If you found this index fossil in a rock, you’d know. The animal was once widespread but quickly became extinct. Only a small percentage of fossils meet these criteria.

Group: Sedimentary
Image Number: 97-36389
Catalog Number: 116668
Time Period: Paleocene Epoch
Gift of G. Cahill , 1995
Locality: Aquia Creek , Virginia

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Smithsonian National Museum of Natural History Department of Mineral Sciences website Credits