Resourceful Scenes from the Past & Present
Click on an item and the description will appear in the "Scene Description" box.
Number 18 - Cyrena
During the last advance of Cretaceous seas, rocks were deposited containing clams such as Cyrena, the fossils of which have been collected in Dakota County.
You can order on-line a hardcopy of Resourceful Scenes from Past and Present, from the School's store ("Nebraska Maps and More"). The full publication is a two-page fold-open.
Compiled by Roger K. Pabian, SNR Research Geologist, Emeritus
Illustrated by Alan Cook and Dee Ebbeka