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prehistoric under water life form
plant Flower bud of Lilium brownii var.viridulum T.S.\nunder light mircoscope with white background
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
Fossils of marine life.Ammonite fossils
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
Salt formations on the stones of Garmasr salt cave in Iran
four Fossils Specimens  : Practical Specimens for Study of Earth Science / Isolated white
blue mold close up background, macro photography
isolated on black.
Ammonite Fossil preserved in the rocks mined from the reserve found in the Middle Atlas Mountains of Morocco
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.
Photomicrograph of flatworm,
Aerial view of loyster farm by Ardara, County Donegal - Ireland.
trilobite fossils on white isolated background.
Fossil scallop shells from rocks on Gozo island, Malta
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).
Prehistoric fish fossil impint in stone isolated on a white background
Twisted rock strata
Isolated on white.
Fossilised Fish
Folded rock from mining for education. Folds in rocks vary in size from microscopic crinkles to mountain-sized folds and occur singly as isolated folds and in extensive fold trains of different sizes.
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
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