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complete pyritised Leonaspis (Kettneraspis) sp. trilobite from Morocco
close up on Trilobite fossil isolated on white background
Magnified close up of shale with multiple trilobite fossils.
fossil trilobite imprinted in the sediment
Trilobite fossil of the species Metacanthina issoumourensis from  Djebel Issoumou, Morocco\nMiddle Devonian, 393 - 388 million years ago.
Phacops rana (Eldredgeops rana) is a species of trilobite from the middle Devonian period
Fossils of trilobite on rock background.
Trilobite Elrathia kingii\nexcavated in Millard Co. Utah, U.S.A
Close up of a multitude of fossil crinoids
A precambarian era fossil from the west desert of Utah
Double elrathia Kingi trilobite fossils superimposed.
Trilobites fossil from Middle Ordovician Era. Selective focus
Sea Urchin spine fossil.  The close-up image shows a  sea urchin fossil from the jurassic period inside a limestone.
An intriacately preserved fossil of Isotelus Trilobite
Fossilised Fish
A trilobite fossil
Primitive Living Fossil
The tribolite fossils exhibited in a museum setting.
Large elrathia Kingi trilobite fossil in gray shale matrix.
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.
trilobite fossil texture as very nice natural background
Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).
Ancient fossilized trilobites on a stone close up
Style life of a geological find of a petrified fossil on a white background
Fossilized prehistoricanimal - trilobite fossill in rock
Stone slab with many oceanic fossils. The town of Erfoud is recognized as a center for fossil collectors.  The area is surrounded by quarries of fossils.
Arthropod fossil. Ordovician Era
Rheum officinale, Chinese rhubarb, Rheum palmatum Lï¼
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Asaphus kowalewskii 3.jpg
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Asaphus expansus robustus.JPG
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Asaphus kowalewskii, Middle Ordovician, Duboviki-Porogi Formations, St. Petersburg region, Russia - Houston Museum of Natural Science - DSC01532.JPG
Asaphus expansus - National Museum of Nature and Science, Tokyo - DSC07747.JPG
Asaphus (Neoasaphus) kowalewskii - National Museum of Nature and Science, Tokyo - DSC07748.JPG
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Trilobite-agnostida.JPG
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Trilobite internal organs IT.PNG
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Cambrian Trilobite Olenoides Mt. Stephen.jpg
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Gfp-trilobite-zlichovaspis-rugosa.jpg
Redlichiidae trilobite, Early Cambrian, Sinsk Formation, Sakha (Yakutiya) Republic, Russia - Houston Museum of Natural Science - DSC01403.JPG
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Agnostus_pisiformis_fossil_trilobite_(Alum_Shale_Formation,_upper_Middle_Cambrian;_Honsater,_Vastergotland,_Sweden)_(15263805372).jpg
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Asaphellus species, intact Trilobite fossils, Early Ordovician Period, Dra Valley, Morocco - Royal Ontario Museum - DSC09851.JPG
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Queensland State Archives 2436 Trilobite fossil at the Queensland Museum Brisbane c 1927.png
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FMIB_46279_Restoration_of_a_Trilobite_(Triarthrus_bechi),_showing_the_appendages_Upper_side_on_right,_under-side_on_left.jpeg
USNM_96488_Blountia_polita_trilobite.jpg
USNM_61523_Tricrepicephalus_yellowstonensis_trilobite.jpg
USNM_90667_Ehmania_walcotti_trilobite.jpg
PhacopidDevonian.jpg
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Neotype fossil (BU55) of the encrinurine trilobite Balizoma variolaris.jpg
ElrathiakingiUtahWheelerCambrian.jpg
Phillipsiidae.jpg
IsotelusHypostome.JPG
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