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Google Image Result for http://www.prehistoricplanet.com/images/features/earth/geologictime/geologictime1.jpg

Google Image Result for http://www.prehistoricplanet.com/images/features/earth/geologictime/geologictime1.jpg

Archaeologists discover dinosaur tail in northern Mexico

Archaeologists discover dinosaur tail in northern Mexico

ammonite--The name "ammonite", from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams' horns.

ammonite--The name "ammonite", from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams' horns.

19 Incredibly Rare Opal Gemstones - Gallery

19 Incredibly Rare Opal Gemstones

Two ancient reptile fossils preserved in fine, volcanic sediments from Liaoning (China).

Two ancient reptile fossils preserved in fine, volcanic sediments from Liaoning (China).

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