Sentences with phrase «tiny plankton fossils»
The fine white sand is made of tiny plankton fossils that are soft to the touch and cool even in the hot sun.
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Countless tiny plankton fossils stare back at him through the microscope.
Not exact matches
The fossil sharks had tiny teeth very similar to a modern - day, plankton - eating megamouth shark.
The organic matter in soils, sediments, and water may come from decomposed land plants, dead plankton (tiny marine animals and plants), or burned wood or fossil fuels, and it offers clues about Earth's past and present environments.