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Definitions of pennsylvanian
  1. noun
    a native or resident of Pennsylvania

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  2. noun
    from 310 million to 280 million years ago; warm climate; swampy land
Definition that contains pennsylvanian
  • myxinikela siroka fossil hagfish of the Pennsylvanian period (c. 300 million years ago) that resembled modern hagfishes
  • order cordaitales extinct plants having tall arborescent trunks comparable to or more advanced than cycads; known from the Pennsylvanian period; probably extinct since the Mesozoic era
  • cordaitales extinct plants having tall arborescent trunks comparable to or more advanced than cycads; known from the Pennsylvanian period; probably extinct since the Mesozoic era
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