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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.
Is igneous rock formed by slow cooling from vulcanic magma of basaltic composition
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.
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
centropyxis aculeata (amoeboid organism) under the microscope - optical microscope x400 magnification
plant Pumpkin ovary under light mircoscope with white background
Leiden leaf c.s. under microscope
Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).
Isolated on black.
blue mold close up background, macro photography
four Fossils Specimens  : Practical Specimens for Study of Earth Science / Isolated white
Geirangerfjord near Hellesylt in Norway.  This is seaweed in the Fjord.
Fossil Oyster
Twisted rock strata
Cross-section of Gabbro photo through the microscope polarized light
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).
Aerial view of loyster farm by Ardara, County Donegal - Ireland.
Photomicrograph of flatworm,
Explore fossil limestone slabs from Ruegen featuring petrified brachiopods, providing insights into ancient marine environments.
Ammonite Fossil preserved in the rocks mined from the reserve found in the Middle Atlas Mountains of Morocco
isolated on black.
Fossilised Fish
Trilobite Dalmanites sp. 400 million years ago
elrathia Kingi trilobite fossil in gray shale matrix.
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.
Fossilized ammonite in limestone on a sidewalk, weathered by time.
Free Images: "bestof:Walcott Cambrian Geology and Paleontology II plate 30.jpg Plate 30 Middle Cambrian Crustaceans Bidentia Emeraldella and Burgessia 1 Bidentia difficilis"
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