Alethopteris

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.

Alethopteris Temporal range: Pennsylvanian–Aptian PreꞒ Ꞓ O S D C P T J K Pg N
Alethopteris grandini, late Carboniferous, Kansas. At the Royal Tyrrell Museum of Palaeontology.
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	†Pteridospermatophyta
Order:	†Medullosales
Family:	†Alethopteridaceae
Genus:	†Alethopteris

See also

• Coal forest