MAKE A MEME View Large Image Grand Canyon National Park, Arizona. (NPS Photo by Cassi Knight, Paleontology Guest Scientist) Close up of the trilobite feeding traces (Cruziana) with camera case for scale (~20 cm), Grand Canyon National Park, Arizona. (NPS Photo by Cassi ...
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Keywords: fossils geology paleontology petrified wood tracks trackway national park service nationalparkservice Close up of the trilobite feeding traces (Cruziana) with camera case for scale (~20 cm), Grand Canyon National Park, Arizona. (NPS Photo by Cassi Knight, Paleontology Guest Scientist) Close up of the trilobite feeding traces (Cruziana) with camera case for scale (~20 cm), Grand Canyon National Park, Arizona. (NPS Photo by Cassi Knight, Paleontology Guest Scientist)
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