
Neuropteris is an extinct seed fern that existed in the Carboniferous period, known only from fossils. Major species include Neuropteris loschi. It is a fairly common fossil in bituminous coal with Alethopteris and similar ferns, especially in the Carboniferous Alleghany Mountains of Pennsylvania, they can be found near St. Clair, Pennsylvania . ....
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http://en.wikipedia.org/wiki/Neuropteris

• (n.) An extensive genus of fossil ferns, of which species have been found from the Devonian to the Triassic formation. • (n.) An extensive genus of fossil ferns, of which species have been found from the Devonian to the Triassic formation.
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http://thinkexist.com/dictionary/meaning/neuropteris/
Neu·rop'te·ris noun [ New Latin , from Greek ... a nerve + ... a kind of fern.]
(Paleon.) An extensive genus of fossil ferns, of which species have been found from the Devonian to the Triassic formation.
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http://www.encyclo.co.uk/webster/N/17
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