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8 Cards in this Set

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Carbonized Fossil

Forms when organisms or parts are pressed between layers of soft mud or clay that hardens squeezing almost all decaying organisms away leaving the carbon imprint in the rock.

Cast Fossil

Forms when mold is fill with sand or mud that hardens into the shape of the organism

Fossil

The preserved remains or traces of an organism that lived in the past

Fossil Record

Gives important information about past life and environments on earth, extinction of life forms as well as how and when new life forms appeared is part of his

Mold fossil

Forms when sediments bury an organism, change into rock,organism decays leaving in a cavity in the shape of the organism

Petrified fossil

Forms when minerals soak into buried remains replacing the remains and changing them into rock

Preserved fossil

Forms when the entire organisms or part organisms are prevented from the decaying by being trapped into rock ice tar or amber

Trace fossil

Forms when the mud or sand hardens into stone where a footprint trail or burrow of an organism was left behind