Alethopteris

Alethopteris; Temporal range: Pennsylvanian 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
Species
	A. branneri; A. lobifolia; A. lonchiticus; A. roesserti; A. serlii; A. sullivantii; A. valida; A. whitbyensis; A. whitneyi;

Alethopteris is a prehistoric plant genus of fossil pteridospermatophytes (seed ferns) that developed in the Pennsylvanian (around 320 to 300 million years ago).^[1]

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Alethopteris Temporal range: Pennsylvanian 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
Species
A. branneri A. lobifolia A. lonchiticus A. roesserti A. serlii A. sullivantii A. valida A. whitbyensis A. whitneyi