Ichthyosaur Vertebra Fossil Type:Fragment which breaks apart at the

which breaks apart at the first impact

the largest impact event in recorded history occurred over the skies of the Podkamennaya Tunguska River in Siberia

ALLOSAURUS (VERTEBRA)

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“Wood Petrifaction: A New View of Permineralization and Replacement

Ichthyosaur Vertebra Fossil Type:Fragment which breaks apart at theAbove: Front of the Specimen Card Ichthyosaurs were marine reptiles with streamlined bodies, no neck, and smooth heads. They were air breathing creatures with two nostrils situated far back on the top of the head, generally similar in shape to a modern porpoise. Ichthyosaurs likely fed on fish using their numerous sharp teeth and enormous eyes to locate prey in deep water. Most abundant and diverse during the Triassic and Jurassic Periods, their