11.3 Fossils Flashcards

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1
Q

Amber

A

Fossilized tree resin.

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2
Q

Cast

A

A fossil formed by the infilling of a mold with sediments.

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3
Q

Fossil

A

The remains or evidence of once-living organisms that are preserved in the geologic record.

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4
Q

Mold

A

A fossil that is an impression of a shell or other part of an organism in sediment.

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5
Q

Original preservation

A

Fossil preservation of complete organisms, including soft parts.

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6
Q

Petrification

A

Fossil preservation by alteration of hard parts of organisms.

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7
Q

Trace fossil

A

A piece of evidence of past life other than a body fossil. Examples include fossilized footprints and animal burrows.

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