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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.
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.
Photomicrograph of filamentous blue-green algae, Oscillatoria species. Each band along the stand is one cell. This filament is very short probably having recently parted from a longer one. Filaments are typically many times longer. This algae is mobile, it moves and twists through the water. San Francisco Bay, California, USA. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live specimen, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
Explore fossil limestone slabs from Ruegen featuring petrified brachiopods, providing insights into ancient marine environments.
Fossilized fish
Fossil scallop shells from rocks on Gozo island, Malta
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.
Leiden leaf c.s. under microscope
Salt formations on the stones of Garmasr salt cave in Iran
Isolated on black.
plant Flower bud of Lilium brownii var.viridulum T.S.\nunder light mircoscope with white background
Fossil Oyster
blue mold close up background, macro photography
four Fossils Specimens  : Practical Specimens for Study of Earth Science / Isolated white
Fossilised Fish
Epidermis. Electron microscope micrograph showing a keratinocyte of spinous layer. The epithelial cell has a polygonal shape, central nucleus with nucleolus, cytoplasm full of keratin filament bundles, and numerous dark desmosomes crossing the intercellular spaces.
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).
Solnhofen Limestone with Subplanites sp. Ammonite fossil
Photomicrograph of flatworm,
The stalactites are in wooden trays in an exhibition hall
Dictyota fasciola  algae from Mediterranean rocky coast
Prehistoric fish fossil impint in stone isolated on a white background
Twisted rock strata
isolated on black.
Ammonite Fossil preserved in the rocks mined from the reserve found in the Middle Atlas Mountains of Morocco
Diatoms are photosynthesising algae, they have a siliceous skeleton (frustule) and are found in almost every aquatic environment including fresh and marine waters, soils, in fact almost anywhere moist.
Fossilised Fish
Free Images: "bestof:Walcott Cambrian Geology and Paleontology II plate 34.jpg Plate 34 Middle Cambrian Crustaceans Hurdia Odaraia and Anomalocaris 1 Hurdia triangulata"
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