File:National Fossil Day 2011 artwork.png

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English: The 2011 National Fossil Day artwork features a mosasaur, a large marine reptile, preying upon an ammonite, a relative of the modern chambered nautilus. Though mosasaurs lived during the same time period as dinosaurs, they were not dinosaurs. Dinosaurs were land-dwelling; mosasaurs were aquatic. A fearsome predator of warm Cretaceous seas, the mosasaur would have dined regularly on these cephalopods, as indicated by numerous fossil ammonites found with mosasaur bite marks. Mosasaurs ate more than just ammonites. Fossil mosasaurs have been found with sea birds, fish, and even smaller mosasaurs in their guts. Mosasaur fossils have been found in rocks of Cretaceous age in many states across the country and around the world.
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Source https://www.nps.gov/subjects/fossilday/logos-and-artwork.htm
Author National Park Service

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Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.

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current01:14, 17 September 2021Thumbnail for version as of 01:14, 17 September 2021900 × 1,350 (189 KB)Di (they-them) (talk | contribs)Uploaded a work by National Park Service from https://www.nps.gov/subjects/fossilday/logos-and-artwork.htm with UploadWizard

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