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Pteropsida

Overview page. Subjects: Earth Sciences and Geography.

In older classifications, a subdivision of tracheophytes that contained the ferns and seed plants, or a class of the Pteridophyta containing only the ferns.

See overview in Oxford Index

Pteropsida

Overview page. Subjects: Earth Sciences and Geography.

In older classifications, a subdivision of tracheophytes that contained the ferns and seed plants, or a class of the Pteridophyta containing only the ferns.

See overview in Oxford Index

Pteropsida

Elizabeth Martin and Robert Hine.

in A Dictionary of Biology

January 2008; p ublished online January 2008 .

Reference Entry. Subjects: Biological Sciences. 25 words.

In older classifications, a subdivision of tracheophytes that contained the ferns and seed plants, or a class of the Pteridophyta

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Pteropsida

Edited by MICHAEL ALLABY.

in A Dictionary of Earth Sciences

January 2008; p ublished online January 2008 .

Reference Entry. Subjects: Earth Sciences and Geography. 83 words.

Class of the Pteridophytina, which comprises all living and extinct ferns. They arose in the Devonian from the trimerophyte

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Pteropsida

Michael Allaby.

in A Dictionary of Geology and Earth Sciences

January 2013; p ublished online September 2013 .

Reference Entry. Subjects: Earth Sciences and Geography. 89 words.

Class of the *Pteridophytina, which comprises all living and extinct ferns. They arose in the *Devonian from the trimerophyte group of ...

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Pteridophytina

Edited by MICHAEL ALLABY.

in A Dictionary of Earth Sciences

January 2008; p ublished online January 2008 .

Reference Entry. Subjects: Earth Sciences and Geography. 191 words.

Subdivision of the plant kingdom, comprising the classes Lycopsida (club mosses), Sphenopsida (horsetails), Psilopsida (but see psilophytales), and Pteropsida

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Pteridophytina

Overview page. Subjects: Earth Sciences and Geography.

Subdivision of the plant kingdom, comprising the classes Lycopsida (club mosses), Sphenopsida (horsetails), Psilopsida (but see psilophytales), and Pteropsida (the various families of...

See overview in Oxford Index