Home - Geological Definitions - Geological Supplies - Submit Location - Travel - United States - Contact
Please help us build our site. Click here to submit your photo and information on a geological location you know about.
Concretions containing fossil mollusks
Weathering of loosely consolidated sand and silt material exposed concentration of spherical concretions containing fossil mollusks in Unit 10 of the Lopez de Bertodano Formation, close to the Cretaceous- Tertiary boundary. Photo by A. Oleinik, Florida Atlantic University