Senin, 20 Juni 2011

DEFINITION OF FAUNAL SUCCESSION

Faunal succession, or the Law of Faunal

Succession, refers to the sequence of life-forms observed

in the geological record. The law states that fossil organisms

(fauna and flora) succeed one another in a definite and recognizable

order, and that each formation on the Earth preserves

a different portion of the history of life than the formations

above and below it. The succession of life records a sequence

of changes in life on Earth that have been used to demonstrate

that evolution records a series of one-way changes in

organisms in that once a species disappears from the record,

it never appears again.

See also EVOLUTION; PALEONTOLOGY.

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