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Showing results for tags 'middle cenomanian'.
Heteromorph posted a topic in Fossil Hunting TripsIn November 2018 I found a site in the Middle Cenomanian Tarrant Formation. Parts of the site were in the Lewisville member of the Woodbine. In the Lewisville I only found a few common bivalves, but the Tarrant produced multiple large concretions packed with ammonites, plant material, fish bones, and some unknowns. Some of the largest concretions were about 2 meters by 2 meters by 2/3 meter thick. But of course sizes and shapes varied. The concretions were a bit crunchy on their weathered exteriors, but in their blue interior they were harder than concrete. Lots of weathered ammonites covering