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Callograptus

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A fossil graptolite called Callograptus staufferi from the Cambrian period, displayed at the New Jersey State Museum.

Callograptus is a genus of graptolites. Graptolites were small creatures that lived in the ocean millions of years ago. Their fossils help scientists learn about how life changed long ago. Studying Callograptus and other graptolites gives us clues about ancient sea environments and how they changed over time. These fossils can be found in rocks all around the world.

Images

Scientific reconstruction of Hallucigenia, an ancient marine creature from the Cambrian period.

This article is a child-friendly adaptation of the Wikipedia article on Callograptus, available under CC BY-SA 4.0.

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