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Fossils 706 8A

QuestionAnswer
They are the remains,imprints or traces of prehistoric organisms. Fossils
Are fossils in which the spaces inside are filled with minerals from ground water. Permineralized
Thin film of carbon residue preserve as a fossil. Carbon Film
A type of body fossil that forms when crystals fill in mold or sedmients wash into a mold and harden into rock. cast
A type of body fossil that forms in rock when a organism with hearts is burried, decayed, dissolves and leaves a cavity in the rock. Permineralized
Are the remains of species that existed on Earth for relatively short periods of time, were abundant and were widespread geographically. Index fossils.
States that in disturbed rock layers the oldest rocks are on the bottom and the rocks became progressively younger towards the top. Principle of superposition
Created by: iwTxG
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