1. Its summit consists of nonmarine quartz sands of the Cockfield Formation. 2. Some of Madagascar's animals appear to represent nonmarine molluscs. 3. Calcarenites can accumulate in a wide variety of marine and nonmarine environments. 4. Rudites can be deposited in a variety of nonmarine and marine environments. 5. The rifting was accompanied by volcanic and nonmarine deposition. 6. Dyrosaurids have also been found from nonmarine sediments. 7. As of 2008, around 2000 species and 200 genera of nonmarine ostracods are found. 8. Early in the Cretaceous, similar nonmarine sediments were laid down and became the Dakota Sandstone. 9. Marine-deposited rock thins toward the west, while nonmarine -deposited rock thins toward the east. 10. Alternating layers of nonmarine , intertidal, and marine sediments lay on top of each other as a result.
