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Ammonite inside a limestone rock. The ammonites where living between 409 and 65 million years ago (Mya). The image was captured in the canton of Aargau (Switzerland).
Ancient fish fossils are on a rock
Keichousaurus hui sauropterygian fossil from China
Fossil of a large shell in yellow-red limestone. Coast of Algarve, Portugal
Photomicrograph of planaria, a flatworm, Dugesia species. Slight motion blur in head. Freshwater stream, San Luis Obispo, California. Live specimen. Wet mount, 2.5X objective, transmitted brightfield illumination.
Rudists embeded in sandstones, cross sections.\nCretaceous marine fossis near Barcelona.
Leiden leaf c.s. under microscope
Microscopic photo of a thin section of calcareous tufa of Holocene age.
Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).
Petrified fossil crinoids (sea lilies, featherstars) in stone
Knightia alta is an extinct genus of fish well-known from abundant fossils found in the Green River Formation of Wyoming, United States. They rarely exceeded 10 cm in length and are found throughout the formation. Knightia alta, Eocene Epoch, Green River Shale. Fossil.
Beautiful fossil of some sort of dinosaur reptile from Madagascar, isolated on a white background
Ammonite Fossil preserved in the rocks mined from the reserve found in the Middle Atlas Mountains of Morocco
Imprint of the sole of a left foot sports shoe on a wet muddy ground, sunny day in nature. shape and texture
Fossilised Fish
A trilobite fossil
Natural ecology, stone, rust, texture, background, abstract, plain stone, rock, building material, shape, solid, marble, granite, sea stone, wall, floor, stone wall, color, nature, simplicity
The stalactites are in wooden trays in an exhibition hall
Bivalvia Fossils inside a large Ammonit. Gastropods from the jurassic period.
Prehistoric fish fossil impint in stone isolated on a white background
close up on Trilobite fossil isolated on white background
Visitors hike on a guided tour, open to the public, of the Corral Bluffs Open Space badlands in Colorado Springs, Colorado on a beautiful fall day on October, 2, 2021. A visitor holds a fragile fossil leaf from the area. The geology of the area spans the million years after the dinosaur extinction and houses world renowned, rare, full mammal skulls and numerous tropical vertebrate and plant fossils from 66 million years ago.
trilobite stone fossil sample with ridges and detail
Fossilised Fish
Ichnites or fossilized footprints of dinosaur. Villar-Poyales, Enciso, La Rioja, Spain.
Unique underground geology of  stalactites and stalagmites.
Salt formations on the stones of Garmasr salt cave in Iran
Free Images: "bestof:MataFoto1- Escadaria Fossil.jpg en Steps formed by fossilized trunks pt Escadaria formada por troncos fossilizados own Odacir Blanco 2005-06-10 Staircases in"
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