Alethopteris is a prehistoric plant genus of fossil pteridospermatophytes (seed ferns) that developed in the Carboniferous period (around 360 to 300 million years ago).[1]

Alethopteris, at the State Museum of Pennsylvania in Harrisburg.
Alethopteris sp.
Alethopteris Serlii on laminated mudstone from St. Clair, Pennsylvania.

See also

References

  1. ^ "Seed Fern Fossil". www.fossilmuseum.net. Retrieved 2016-12-01.


Allikas: https://en.wikipedia.org/wiki/Alethopteris
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