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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.
An illustration of a group of Woolly Mammoths grazing in a field in the morning sun.
Fossils of marine life.Ammonite fossils
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).
Dapalis Macrurus fish fossil from Aix-en-Provence, France
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.
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.
Petrified fossil crinoids (sea lilies, featherstars) in stone
Fossilised Fish
A 3D illustration of a Woolly Mammoth walking across a grassy field.
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.
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.
Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).
trilobite fossil
Rudists embeded in sandstones, cross sections.\nCretaceous marine fossis near Barcelona.
complete pyritised Leonaspis (Kettneraspis) sp. trilobite from Morocco
Dinosaur skeleton illustration
Dinosaur fossils on sand stone background- detail.
Marine mammal bone (Cetacea) and other fossils outcrop on the beach at Capitola City Beach, California, USA.
A dinosaur fossil at Petrified Forest National Park Visitor Center, AZ, USA
Ammomite (Ammomoideae) fossil imprint on a limestone. The image was captured in the canton of schaffhausen during springtime.
Computer generated 3D illustration with the dinosaur Mamenchisaurus in a rainforest
Fossilised Fish
prehistoric under water life form
Primitive fish fossil
Trilobite fossil (Cheirurus ingricus) from the middle Ordovician peroid (488.3 – 443.7 million years ago) . This specimen was found in Russia
elrathia Kingi trilobite fossil in gray shale matrix.
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