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close up on Trilobite fossil isolated on white background
Microscopic photo of a thin section of calcareous tufa of Holocene age.
Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).
Phacops rana (Eldredgeops rana) is a species of trilobite from the middle Devonian period
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.
plant Pine Cone-Female L.S. under light mircoscope with white background
Leiden leaf c.s. under microscope
Pheochromocytoma, Site: Adrenal gland
trilobite fossil
Rudists embeded in sandstones, cross sections.\nCretaceous marine fossis near Barcelona.
trilobite fossil texture as nice natural background
Double elrathia Kingi trilobite fossils superimposed.
Trilobites fossil from Middle Ordovician Era. Selective focus
Fish gill C.S. under light microscope with white background
four Fossils Specimens  : Practical Specimens for Study of Earth Science / Isolated white
Fatty liver disease (steatosis) is a common condition caused by having too much fat build up in your liver. A healthy liver contains a small amount of fat. It becomes a problem when fat reaches 5% to 10% of your liver's weight.
Freshwater aquatic zooplankton and algae under microscope view
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).
trilobite fossil texture as very nice natural background
Photomicrograph of midge fly, Chironomidae family, eggs hatching. Eggs are encased in a gelatinous material that attracts debris. Live specimen. Larva about 0.5 mm long. Wet mount, 10X objective, transmitted brightfield illumination.
Light microscope micrograph of a retina stained with the Golgi method. In the inner layer there are many amacrine cells with pear-shaped cell bodies located in the inner nuclear layer and dendrites ending in the inner plexiform layer.
giant bolt.Building accessories. rebar
close up on Trilobite fossil isolated on white background
Fossilized ammonite in limestone on a sidewalk, weathered by time.
Trilobite fossil (Cheirurus ingricus) from the middle Ordovician peroid (488.3 – 443.7 million years ago) . This specimen was found in Russia
Monotomidae, Coleoptera Fossil in Burmese amber of Cenomanian era, 100 million years ago, from the state of Myanmar, extreme macro shot
fossil trilobite imprinted in the sediment
Ancient rock art incised in a sandstone boulder.
Free Images: "bestof:Trilobite cranidium numbered.svg en Diagram showing the larger details of the cephalon of a trilobite Fixigena Librigena Glabella http //www trilobites info/"
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Dutch Ships in a Calm by Willem van de Velde (II) Rijksmuseum Amsterdam SK-C-1707 (before restoration).jpg
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Trilobite cranidium numbered.svg
Trilobite cranidium-en.svg
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Distribution of Russula solaris.svg
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