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fossil of a trilobite. lived during time of Early Cambrian throughout the lower Paleozoic, during the Devonian til the end of the Permian See also my other Fossils and Mineral/ Crystal images:
Orthoceras fossils in Harz slate from the Devonian provide key insights into the evolution and diversification of early marine ecosystems
complete pyritised Leonaspis (Kettneraspis) sp. trilobite from Morocco
Trilobite fossil of the species Metacanthina issoumourensis from  Djebel Issoumou, Morocco\nMiddle Devonian, 393 - 388 million years ago.
Trilobites
close up on Trilobite fossil isolated on white background
Close up of a multitude of fossil crinoids
Elrathia Kingii Trilobite fossil in shale stone (Cambrian age). (shallow dof)
Magnified close up of shale with multiple trilobite fossils.
Phacops rana (Eldredgeops rana) is a species of trilobite from the middle Devonian period
Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).
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.
Fossilised Fish
A precambarian era fossil from the west desert of Utah
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.
illuminated from above fossil
elrathia Kingi trilobite fossil in gray shale matrix.
complete pyritised Leonaspis (Kettneraspis) sp. trilobite from Morocco
Closeup isolated trilobite fossil
An intriacately preserved fossil of Olenoides Superbus
Trilobite Elrathia kingii\nexcavated in Millard Co. Utah, U.S.A
Sea Urchin spine fossil.  The close-up image shows a  sea urchin fossil from the jurassic period inside a limestone.
trilobite fossil texture as nice natural background
elrathia Kingi trilobite fossil in gray shale matrix.
Trilobites fossil from Middle Ordovician Era. Selective focus
Marine life fossils.
A trilobite fossil
Primitive Living Fossil
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Arctinurus boltoni, Middle Silurian, Rochester Shale, Niagara County, New York, USA - Houston Museum of Natural Science - DSC01577.JPG
Arctinurus boltoni, Middle Silurian, Rochester Shale, Niagara County, New York, USA - Houston Museum of Natural Science - DSC02014.JPG
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Arctinurus boltoni - National Museum of Nature and Science, Tokyo - DSC07761.JPG
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