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A background texture of ammonite fossils embedded in rock.
Rudists embeded in sandstones, cross sections.\nCretaceous marine fossis near Barcelona.
Ancient fish fossils are on a rock
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).
Keichousaurus hui sauropterygian fossil from China
Archaeopteryx marble imprint, fossilized imprint, imprint transitional form (mosaic form), of a theropod dinosaur. Replica of a lime-impression (limestone slab) from the Jurassic about 150 million years old.
Microraptor gui fossil, Early Cretaceous.
Fossilized fish
Detail of a fossil Ichthyosaurus.
Fossilised Fish
fossil trilobite imprinted in the sediment
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.
Fossil
Abruzzo, Italy: fossil shells enclosed in the sedimentary rocks of a mountain river in the Gran Sasso Monti della Laga National Park, sign that the mountain range was once submerged
Trilobites
Primitive fish fossil
Isolated on white.
Fossils of marine life.Ammonite fossils
original Keichousaurus hui fossil from Guizhou Xingyi ,China isolated on white background
Old shell of a turtle found on the beach.
Block of brown and white fossil shells background
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.
close up on Trilobite fossil isolated on white background
Bivalvia Fossils inside a large Ammonit. Gastropods from the jurassic period.
Ammonite fossil imprint on prehistoric rocks
Fossilised Fish
trilobite fossil
Magnified close up of shale with multiple trilobite fossils.
isolated on black.
Trace of ammonite fossil on the beach at Lyme Regis, Dorset, uK
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