File:Petalodont Tooth (NPS Photo).jpg

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Captions

English

Tooth of a nonspecific petalodont from Mammoth Cave, Kentucky. Carboniferous (Mississippian) period. Cropped.

DescriptionPetalodont Tooth (NPS Photo).jpg	English: Petalodont chondrichthyan sharks would have swum in the waters above the Mammoth Cave region over 325 million years ago. The teeth were used to crush the outer shells of corals that were abundant on the sea floor.
Date	12 October 2020
Source	https://npgallery.nps.gov/SearchResults/albumid/defa5fd6-e5b5-48b4-93a5-fd0640cbc6ab?
Author	NPS Photo

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