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  • Rights: GNS Science Published 22 July 2021 Size: 40 KB Referencing Hub media

    The presence of these two fossil dinoflagellates in a rock can help date it to the late Cretaceous. The fossils are only about 200 µm long.

    These microfossils helped scientists use fossil correlation to date dinosaurs that once lived in New Zealand.

    Micrograph by Poul Schioler, Image: GNS Science.

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