- 1. a. Belonging or relating to the period, and also to the formation, next following the Carboniferous, and regarded as closing the Carboniferous age and Paleozoic era. Source: opted
- 2. n. The Permian period. See Chart of Geology. Source: opted
- 3. Belonging or relating to the period, and also to the formation, next following the Carboniferous, and regarded as closing the Carboniferous age and Paleozoic era. -- n. The Permian period. See Chart of Geology. Source: webster
- 4. Belonging or relating to the period, and also to the formation,next following the Carboniferous, and regarded as closing theCarboniferous age and Paleozoic era.-- n. Source: adambom
- 5. n. from 280 million to 230 million years ago; reptiles Source: ecdict
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permian
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carboniferousperiodagebelongingclosingerafollowingformationnextpaleozoicregardedrelatingchartgeologymillionseeagoreptilesyears