Introduction to Amphibia
Introduction to Amphibia
Introduction to Amphibia
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Origin and Evolution of the Class <strong>Amphibia</strong><br />
♦Devonian – Age of Fish and<br />
<strong>Amphibia</strong>ns<br />
♦Very warm and wet climate; many<br />
shallow, warm, freshwater “seas”<br />
♦Swamps prevailed throughout the<br />
Devonian and in<strong>to</strong> the Triassic<br />
♦Plants dominated by Scale trees<br />
and Horsetails. The First<br />
gymnosperms appeared<br />
Ichthyostega, a small, early amphibian (3ft / 1m) from Greenland
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