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prehistoric under water life form

Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).

Microscopic photo of a thin section of calcareous tufa of Holocene age.

Fossilized fish

Explore fossil limestone slabs from Ruegen featuring petrified brachiopods, providing insights into ancient marine environments.

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.

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.

Fossils of marine life.Ammonite fossils

trilobite fossil

Salt formations on the stones of Garmasr salt cave in Iran

Ancient prehistoric fossils. An archaeological find. the first living beings on the planet earth. the first ancient primitive animals. cephalopods

Ammonite Fossil preserved in the rocks mined from the reserve found in the Middle Atlas Mountains of Morocco

four Fossils Specimens : Practical Specimens for Study of Earth Science / Isolated white

elrathia Kingi trilobite fossil in gray shale matrix.

Trilobite Dalmanites sp. 400 million years ago

Fossilised Fish

Trilobite Paradoxides spiulosus

blue mold close up background, macro photography

The stalactites are in wooden trays in an exhibition hall

An arid mountain landscape with an abandoned structure

Fossil ammonite fossil isolated on white background with clipping path

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.

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.

Ammomite (Ammomoideae) fossil imprint on a limestone. The image was captured in the canton of schaffhausen during springtime.

Old stones background. imprint of an ancient ammonite from the Mesozoic era.

Fossilised Fish

isolated on black.

Twisted rock strata

Fossil Oyster

Trace of ammonite fossil on the beach at Lyme Regis, Dorset, uK

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