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Haplophrentis carinatus
The Haplophrentis carinatus had two oar-like appendages (called “helens”) used...
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Scientists and Fossils
Fossils from the Cambrian period are found throughout the world. The Chengjiang...
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Archaeocyatha
The peaceful Archaeocyatha lived during the most recent part of the Cambrian...
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Opabinia
Opabinia was a strange looking creature: it had five mushroom-like eyes that...
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Ottoia prolifica
The Ottoia prolifica has proven that cannibalism did exist in the Cambrian period...
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Anomalocaris canadensis
Reaching almost three feet (one meter) long, Anomalocaris canadensis was enormous...
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Hurdia Victoria
The great predator Hurdia victoria’s prey consisted of trilobites and other...
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Teeth and Jaw of an Ancient Shark
This well-preserved fossil is the only intact partial skull ever found of a white...
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Fossils Get a CT Scan
When paleontologists, like the Smithsonian National Museum of Natural History's own...
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Fossil Jellyfish
How long have jellyfish lived in the ocean? This jellyfish fossil is from the...
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Preparing a Fossil Whale Specimen
Paleobiologist Mark D. Uhen drills away rock to reveal the fossilized bones of...
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