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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).
Microscopic photo of a thin section of calcareous tufa of Holocene age.
close up of wasp's nest texture as background or wallpaper
Large Moroccan fossil trilobites
Detail of a fossil Ichthyosaurus.
Devonian fossils in limestone matrix include bryozoa, crinoid, and brachiopod fossils. Largest pieces are about 1/2 inch (10 mm). Fossil and Prairie Park Preserve, Silos and Smokestacks National Heritage Area, Rockford, Iowa, USA.
Rudists embeded in sandstones, cross sections.\nCretaceous marine fossis near Barcelona.
Mud Whelk, Merimbulla, NSW, June 2022
The fossil of a fish in grey slated stone
Knightia alta is an extinct genus of fish well-known from abundant fossils found in the Green River Formation of Wyoming, United States. They rarely exceeded 10 cm in length and are found throughout the formation. Knightia alta, Eocene Epoch, Green River Shale. Fossil.
four Fossils Specimens  : Practical Specimens for Study of Earth Science / Isolated white
Guillemots on the rocks below the cliffs of Inner Farne, Northumberland.
Trilobites fossil from Middle Ordovician Era. Selective focus
Ammonite and Orthoceras Fossil preserved in the rocks mined from the reserve found in the Middle Atlas Mountains of Morocco
A very old fossil of a prehistoric fish on a stone
Fossil Fern inside carbon rocks. The image was captured in the Swiss Alps.
very old fossil of fish
Fossilised Fish
Detail of a fossil Ichthyosaurus.
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.
Fossil ammonite fossil isolated on white background with clipping path
Ammomite (Ammomoideae) fossil imprint on a limestone. The image was captured in the canton of schaffhausen during springtime.
mollus, wall, rock
Thousands of birds nest on cliffs in Northen Svalbard
Trilobite fossil on stone, prehistoric extinct animal lived in Cambrian and Silurian seas. Big trilobite fossil of prehistoric era and rock. Concept of paleontology, evolution and Paleozoic fossil.
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
Fossils ammonites in nature. Joyful. Ardèche
Ancient rock art incised in a sandstone boulder.
Free Images: "bestof:Lophopsittacus fossils.jpg 1 �8 Lophopsittacus mauritianus subfossils 1 Left tibia front view l attachments of the transverse ligament across the long extensor"
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