Ch 12 Proterozoic Eon
Proterozoic Eon
Proterozoic Eon
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Neoproterozoic life<br />
• Impressions from the<br />
Ediacara Hills region of<br />
Australia (“Ediacara<br />
Fauna”)<br />
Primitive<br />
mollusk<br />
“Sea pen”<br />
(cnidarian)<br />
Worm/arthropod?<br />
Segmented form<br />
Earth History, <strong>Ch</strong>. <strong>12</strong> 18
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