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nouna native or resident of Pennsylvania
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type of: -
nounfrom 310 million to 280 million years ago; warm climate; swampy landpart of:
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