3.1" Unknown Fossil Vertebrae And Bones in Matrix Late Cretaceous Era Niobrara FM KS Ruby & Zoisite Lower sea levels exposed vast

Lower sea levels exposed vast areas of the continental shelf

While the lake once spanned up to 930 square miles

they serve as excellent index fossils

Their rapid evolutionary turnover makes them invaluable as index fossils

the HED suite offers a comprehensive view of the internal structure and evolutionary history of a differentiated asteroid

3.1" Unknown Fossil Vertebrae And Bones in Matrix Late Cretaceous Era Niobrara FM KS Ruby & Zoisite Lower sea levels exposed vastLocation: Niobrara Formation, Gove County, Kansas Weight: 1. 9 Ounces Dimensions: 3. 1 Inches Long, 2. 6 Inches Wide, 0. 9 Inches Thick Late Cretaceous, 83 million years old The item pictured is the one you will receive. The Niobrara Formation in Gove County, Kansas, is a significant geological unit, primarily composed of chalk and calcareous shale, deposited during the Late Cretaceous period. This formation is renowned for its rich fossil record,