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American Indian Arrowhead/Spear Point Artifact in Palm of Hand
close up on Trilobite fossil isolated on white background
Rudists embeded in sandstones, cross sections.\nCretaceous marine fossis near Barcelona.
Ancient fish fossils are on a rock
Ammonite inside a large rock. The ammonites where living between 409 and 65 million years ago (Mya).
Microraptor gui fossil, Early Cretaceous.
Ancient fish fossil in stone
Detail of a fossil Ichthyosaurus.
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.
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.
Trilobites
fossil trilobite imprinted in the sediment
Magnified close up of shale with multiple trilobite fossils.
Close-up shot of a prehistoric creature.
Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).
Fossil of ancient reptile in the rock
Fossils in the rock in the Sierra de Francia, Salamanca
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.
Marine mammal bone (Cetacea) and other fossils outcrop on the beach at Capitola City Beach, California, USA.
Ammonite fossil trace in Torcal de Antequera, Andalusia, Spain
Trilobite fossil remains in stone.
trilobite fossil texture as very nice natural background
Ammomite (Ammomoideae) fossil imprint on a limestone. The image was captured in the canton of schaffhausen during springtime.
original Keichousaurus hui fossil from Guizhou Xingyi ,China isolated on white background
Double elrathia Kingi trilobite fossils superimposed.
Trilobite Paradoxides spiulosus
Trace of ammonite fossil on the beach at Lyme Regis, Dorset, uK
Beautiful fossil of some sort of dinosaur reptile from Madagascar, isolated on a white background
Primitive fish fossil
Free Images: "bestof:Phillipsiidae.jpg The fossil of a trilobite found in Natchez Mississipi JIM CONRAD'S NATURALIST NEWSLETTER Written and issued from the woods edge near Natchez"
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