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

It is in the family Alethopteridaceae.
Alethopteris is a prehistoric plant genus of fossil  Pteridospermatophyta (seed ferns) that developed in the Carboniferous period (around 360 to 300 million years ago).
It is in the family Alethopteridaceae.
Alethopteris