By: magic-gigapans
Image: Callan Bentley, Mid-Atlantic Geo-Image Collection
License: Creative Commons Non Commercial ⧉

Uploaded: 28 Apr 2020
Last Updated: 20 May 2020

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Fossiliferous limestone of the Madison Group, collected from talus in Sacagawea Cirque, Bridger Range, Montana. The obverse of this sample, rich in fenestrate bryozoans, can be seen here: https://viewer.gigamacro.com/view/GPmEuy1i8c0JynKE