Bullet -shaped stone with print shell, not applicable, -5000 --2300 Bullet -shaped stone with hollowing, in which the print of open bin -valve shell. The stone is almost certainly a phosphorite sandstone concretion, perhaps from the Pliocene but more likely from the Miocene. (5-23 million years ago.) In and around the Netherlands, such concretions occur in the Achterhoek and Twente, as well as in Flanders. The shell may be a glycymeris species. (Determined based on photo by Frank Wesselingh, Naturalis) .

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Size: 5310px × 5310px
Photo credit: © piemags/rmn / Alamy / Afripics
License: Licensed
Model Released: No

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