Fish plate

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Species: Unknown platysomid tooth plate This is a mold of a Permian age fish plate. Fish plates are tooth-like structures found in early fish and are known from the Pennsylvanian to the Permian periods. They are somewhat common in the Kaibab limestone, and can be found exposed in the Grand Canyon. The information used to describe this fossil was sourced from JSTOR.org: https://www.jstor.org/stable/1304267?refreqid=excelsior%3Aa2dba2d64ca0d7b0218fe21a1411aa5d&seq=1#metadata_info_tab_contents This fossil is in the collections at Grand Canyon National Park, Arizona. Learn about paleontology through the National Park Service: https://www.nps.gov/subjects/fossils/index.htm Learn more about Grand Canyon National Park's Centennial celebration: https://www.nps.gov/grca/getinvolved/centennial.htm