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Fossil of dinosaur eggs. Ancient dinosaur eggs lay around.
Ammonite fossils in limestone. The ammonites where living between 409 and 65 million years ago (Mya). The fossils where found in the canton of Aargau (Switzerland).
Detail of a fossil Ichthyosaurus.
Imprint in the stone of petrified crinoids as a fossil
Fossils of marine life.Ammonite fossils
Close-up shot of a prehistoric creature.
Magnified close up of shale with multiple trilobite fossils.
Foundings in excavation of Hattusa, Bogazkoy. Reliefs tablets statues walls gates cylinder seals stamp seals. Anatolian ancient civilizationsFoundings in excavation of Hattusa, Bogazkoy. Reliefs tablets statues walls gates cylinder seals stamp seals. Anatolian ancient civilizations
Ammonite and Orthoceras Fossil preserved in the rocks mined from the reserve found in the Middle Atlas Mountains of Morocco
Titanosaurus Australis, fossized eggs, prehistoric animal inhabitant of Patagonia,  Argentina.
Fossil Fern inside a peace of slate. The fossil is more than 100 mio Years old.
fossil trilobite imprinted in the sediment
Fossilised Fish
The tribolite fossils exhibited in a museum setting.
Magnified close up of a rounded cracked sandstone rock.
One dinosaur egg in a nest in the desert in Arizona near Tuba City. Layers are exposed to reveal the fossilized embryo!
Fossils of trilobite on rock background.
Detail os the fossil of a prehistoric frog
Bivalvia Fossils inside a large Ammonit. Gastropods from the jurassic period.
The stalactites are in wooden trays in an exhibition hall
A woman and child peering into a display cabinet
trilobite stone fossil sample with ridges and detail
Abruzzo, Italy: fossil shells enclosed in the sedimentary rocks of a mountain river in the Gran Sasso Monti della Laga National Park, sign that the mountain range was once submerged
crinoid fossil
Devonian cronoid fossils in limestone matrix. Largest is about 1/4\
Fossil of crinoid Encrinus liliiformus 200 million years ago
Sea Urchin spine fossil.  The close-up image shows a  sea urchin fossil from the jurassic period inside a limestone.
Model of dinosaur egg in laboratory
Rudists embeded in sandstones, cross sections.\nCretaceous marine fossis near Barcelona.
Free Images: "bestof:Academy of Natural Sciences, Philadelphia - IMG 7447.JPG Macroolithus fossil dinosaur eggs from China Exhibit in the Academy of Natural Sciences 1900 Benjamin"
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