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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.
Fossil scallop shells from rocks on Gozo island, Malta
Fossilized fish
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.
Salt formations on the stones of Garmasr salt cave in Iran
Stones the structure of the nature background, gray texture. Iron mine, natural texture of volcanic stone
Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).
Leiden leaf c.s. under microscope
Geirangerfjord near Hellesylt in Norway.  This is seaweed in the Fjord.
Fossil Oyster
Twisted rock strata
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
Fossils on the beach ar Robin Hood's Bay, Yorkshire coast
Photomicrograph of flatworm,
The stalactites are in wooden trays in an exhibition hall
trilobite fossils on white isolated background.
Solnhofen Limestone with Subplanites sp. Ammonite fossil
Ammomite (Ammomoideae) fossil imprint on a limestone. The image was captured in the canton of schaffhausen during springtime.
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.
Fossilised Fish
isolated on black.
blue mold close up background, macro photography
Ammonites are extinct marine mollusks. These can be easily seen during hiking in the Parc Naturel des Préalpes d'Azur.\nThe Regional Natural Park of the Préalpes d'Azur is located in the Alpes-Maritimes department, in the Provence-Alpes-Côte d'Azur region. It is located in the Pre-Alps of Grasse, between the valleys of the Siagne, the Loup, the Cagne, the Estéron and the Var.
elrathia Kingi trilobite fossil in gray shale matrix.
Free Images: "bestof:Walcott Cambrian Geology and Paleontology II plate 26.jpg Plate 26 Middle Cambrian Crustaceans Marrella 1 Marrella splendens <small>Walcott</small> 2 Marrella"
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