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Lower Carboniferous period

   Also found in: Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
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Noun1.Lower Carboniferous period - from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects
Lower Carboniferous, Missippian period, Mississippian
Carboniferous, Carboniferous period - from 345 million to 280 million years ago


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The Lower Carboniferous period, lasting from 360 million to 320 million years ago, saw many important evolutionary changes in reptiles, amphibians and arthropods.
Record-breaking reptile by McKenzie, A. / Science News
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