Genus Alethopteris
Facsimile
Transcription
Status: Complete
5-Felices
3 Pecopteridae
Genus Alethopteris, Sterhb? & Gopp.
Frond bipinnate or tripinnate or by tripinnatifid; secondary nerves rising perpendicularly or obliquely from the medial one, simple or dichotomous, and many times forked; margins of the pinnules often revolute; front unknown.
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