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fossil trilobite imprinted in the sediment
Nearly a thousand years ago natives inhabited the lower elevations around the San Francisco Peaks of Arizona. In an area so dry it would seem impossible to live, they built pueblos, harvested rainwater, grew crops and raised families. Today the remnants of their villages dot the landscape along with their other artifacts. These petroglyphs were found on Magnetic Mesa in Wupatki National Monument near Flagstaff, Arizona, USA.
Microraptor gui fossil, Early Cretaceous.
Millions of Years Old Bird Fossil
A dinosaur fossil at Petrified Forest National Park Visitor Center, AZ, USA
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).
Detail of a fossil Ichthyosaurus.
Rudists embeded in sandstones, cross sections.\nCretaceous marine fossis near Barcelona.
Model Dinosaur fossil
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 of Ammonite isolated on white background with copy space
Fossils of marine life.Ammonite fossils
trilobite fossil
Calmitacea inside a peace of stone. The fossil was growing in the Carboniferous Period (around 360 to 300 million years ago).
Trilobites
Primitive fish fossil
Nearly a thousand years ago natives inhabited the lower elevations around the San Francisco Peaks of Arizona.  In an area so dry it would seem impossible to live, they built pueblos, harvested rainwater, grew crops and raised families.  Today the remnants of their villages dot the landscape along with their other artifacts.  These petroglyphs were found on Magnetic Mesa in Wupatki National Monument near Flagstaff, Arizona, USA.
Ancient fish fossils are on a rock
Keichousaurus hui sauropterygian fossil from China
Fossilized fish
In the petrified bed of a river in San Juan Raya, within the Tehuacan-Cuicatlan Biosphere Reserve, state of Puebla, the petrified footprints of dinosaurs that lived here in the Jurassic were found, specifically these of carnivorous theropods. They are marked with river stones to be able to identify them.
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.
Small Insect fossil on stone
Ammonite inside a large rock. The ammonites where living between 409 and 65 million years ago (Mya).
Petroglyphs on a rock in Arizona near Phoenix.
close up on fish fossil fish in the rock
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.
Fossilised Fish
A background texture of ammonite fossils embedded in rock.
Fossils in the rock in the Sierra de Francia, Salamanca
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