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because they were covered by oceans millions of years ago.

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13y ago

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How fossils are layered?

We Find fossils Inside the Mud or soils deep end... The more deep ... The more you get fossils The more Near.. The less chances or formation of Fossils..


When did The Trilobites end?

0.2 - 32 inches


How did fossils end up on the tops of mountains?

Marine fossils form when creatures die and sink to the bottom where there is little oxygen, and are covered with sediment. If sediment continues to accumulate, after many years its weight will crush the deposit, and in combination with well known chemical processes, can cement it into sandstone. Later, if the sea floor it lifted by any of a number of (again, well understood) geological processes, what was once the sea floor can become part of a mountain. Such a mountain can form in a few million years, where fossils have been forming for 3 BILLION years.


Do the Rocky Mountains go through Texas?

No, the Rocky Mountains do not go through Texas. The Rocky Mountains run primarily through the western United States, including states such as Colorado, Wyoming, Montana, and Idaho.


How do fossils end up in sedimentary rocks?

fossils are small living organisms that existed millions of years ago. They mostly have a shell which is the fossil that you can sea. Sedimentary rock is formed when lots of small particles and pieces of rock and often dead organisms, (the fossils) drift down to the sea bed and over millions of years get compressed together to form the rock. The fossil that you see was once a living shelled organism which dies and was preserved as the sedimentary rock formed