By: magic-gigapans
Image: Callan Bentley, Mid-Atlantic Geo-Image Collection
License: Creative Commons Non Commercial ⧉

Uploaded: 25 Mar 2020
Last Updated: 21 May 2020

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A slab of chalcedony full of Eocene gastropod fossils. Though commonly referred to as "Turitella agate," that name is a misnomer. These snails are a freshwater species, Elimia tenera. Zoom in closer, and you'll see that the shells are packed full of mango-shaped ostracode fossils.