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prehistoric under water life form
Fossils of marine life.Ammonite fossils
Microscopic photo of a thin section of calcareous tufa of Holocene age.
Ammomite (Ammomoideae) fossil imprint on a limestone. The image was captured in the canton of schaffhausen during springtime.
Explore fossil limestone slabs from Ruegen featuring petrified brachiopods, providing insights into ancient marine environments.
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.
An eroding rock with fossil inclusions surrounded by beach rock swash deposits.  These types of rocks are fairly common to find on NW USA beaches for those with a keen eye.
Fossilized fish
Prehistoric fish fossil impint in stone isolated on a white background
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.
Ancient fossilized trilobites on a stone close up
Rudists embeded in sandstones, cross sections.\nCretaceous marine fossis near Barcelona.
Isolated on black.
Fossilised Fish
Leiden leaf c.s. under microscope
plant Flower bud of Lilium brownii var.viridulum T.S.\nunder light mircoscope with white background
Fossil Oyster
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
Keichousaurus hui sauropterygian fossil from China
Ammomite (Ammomoideae) fossil imprint on a limestone. The image was captured in the canton of schaffhausen during springtime.
A school of Lemonpeel Angelfish try to get away from a Liopleurodon Plesiosaur near a tropical reef.
The fossil of a fish in grey slated stone
Fossilised Fish
four Fossils Specimens  : Practical Specimens for Study of Earth Science / Isolated white
Ammonite Fossil preserved in the rocks mined from the reserve found in the Middle Atlas Mountains of Morocco
Computer generated 3D illustration with the extinct ichthyosaur Shonisaurus
Twisted rock strata
prehistoric underwater life forms in the ocean shortly after the Cambrian explosion
Fossilized ammonite in limestone on a sidewalk, weathered by time.
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