Fossil Evidence and Geologic time scale
Fossils over Time
- The geologic time scale is a record of the earth's geologic history as scientists have come to understand it by studying the layers in rock.
- The geologic time scale is broken up into larger and smaller subdivisions, which help us get a better sense of how historical events fit together..
Extinctions
Extinction occurs when the last individual organism of a species dies.
mass extinctions
A mass extinction occurs when many species become extinct within a few million years or less.
Mass Extinctions
The fossil record contains evidence that five mass extinction events have occurred during the Phanerozoic eon.
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Evidence of Evolution
ADRIANA PATRICIA ROD
Created on November 5, 2020
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Transcript
Fossil Evidence and Geologic time scale
Fossils over Time
Extinctions
Extinction occurs when the last individual organism of a species dies.
mass extinctions
A mass extinction occurs when many species become extinct within a few million years or less.
Mass Extinctions
The fossil record contains evidence that five mass extinction events have occurred during the Phanerozoic eon.
TÍTULO AQUÍ
TÍTULO AQUÍ
TÍTULO AQUÍ
TÍTULO AQUÍ
Lorem ipsum dolor
Lorem ipsum dolor
Lorem ipsum dolor
Lorem ipsum dolor
+ info
+ info
+ info
+ info
gracias