Alethopteris is a prehistoric plant genus of fossil Pteridospermatophyte (seed fern) that developed around 360 to 300 million years ago in the Carboniferous period and existed in what is now North America.
Alethopteris is a prehistoric plant genus of fossil Pteridospermatophyte (seed fern) that developed around 360 to 300 million years ago in the Carboniferous period and existed in what is now North America.