41.4 MB (41.0 MB compressed)
4252 x 3402 pixels
36.1 x 28.7 cm ⏐ 14.2 x 11.3 in (300dpi)
HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY
Sea snail fossils. Fossilised shells of Potamides tricarinatus gastropod molluscs from the Bartonian stage (around 40 to 37 million years ago) of the middle Eocene epoch.
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