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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 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
The stalactites are in wooden trays in an exhibition hall
Scenery at Valley of Dreams, New Mexico, USA
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).
Stones the structure of the nature background, gray texture. Iron mine, natural texture of volcanic stone
plant Flower bud of Lilium brownii var.viridulum T.S.\nunder light mircoscope with white background
Isolated on white.
Ammonite Fossil preserved in the rocks mined from the reserve found in the Middle Atlas Mountains of Morocco
Fossil Oyster
elrathia Kingi trilobite fossil in gray shale matrix.
Solnhofen Limestone with Subplanites sp. Ammonite fossil
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.
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.
An arid mountain landscape with an abandoned structure
A fish fossil, Euripholis Pictet, from the upper cretaceous period.
trilobite fossils on white isolated background.
Prehistoric fish fossil impint in stone isolated on a white background
blue mold close up background, macro photography
four Fossils Specimens  : Practical Specimens for Study of Earth Science / Isolated white
Fossilised Fish
isolated on black.
Strunjan cliff: .An 80 meters high cliff along 200 meters of the coast, a natural reserve and is the highest flysch cliff in the east part of the Adriatic.
Free Images: "bestof:Walcott Cambrian Geology and Paleontology II plate 21.jpg Plate 21 Middle Cambrian Annulata Wiwaxia Banffia and Pollingeria 1 Wiwaxia corrugata <small> Matthew"
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