Cyclopteris Knowpia

Cyclopteris; Temporal range: 360.7–0.012 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Cyclopteris rhomboidea - Exhibit in the Arppeanum, Helsinki, Finland.
Scientific classification
Kingdom:	Plantae
Division:	†Pteridospermatophyta
Order:	†Medullosales
Family:	†Cyclopteridaceae
Genus:	†Cyclopteris; Brongniart, 1828
Species
	Cyclopteris rhomboidea; and see text;

Cyclopteris is an extinct genus of seed ferns in the extinct family †Cyclopteridaceae. Species are from the Carboniferous.

Cyclopteris elegans Lesquereux, 1854^[2] - from the Carboniferous of Pennsylvania, USA
Cyclopteris elegans Unger, 1858^[3]
Cyclopteris elegans Achepohl, 1883^[4] - from Westphalia, Germany^[5]

References edit

^ Prodrome d'une histoire des végétaux fossiles. A Brongniart, 1828
^ New species of fossil plants. Lesquereux, 1854, Boston Journ. of Nat. Hist. VI, 4, page 416
^ Unger, 1858, Denkschr. K. Akad. d. Wiss., Wien, Math. natw. CI, XI, page 161, tab. 6, fig. 1
^ Das Niederrheinisch-Westfälische Steinkohlengebirge: Atlas der fossilen Fauna und Flora in 42 Blättern, nach Originalen photographirt und 4 lithographirte Blätter, … L Achepohl, 1883, page 116, tab. 35, fig. 5
^ Fossilium Catalogus. II. Plantae. Pars 39. W. Jongmans

Cyclopteris Temporal range: 360.7–0.012 Ma PreꞒ Ꞓ O S D C P T J K Pg N

Cyclopteris rhomboidea - Exhibit in the Arppeanum, Helsinki, Finland.
Scientific classification
Kingdom:	Plantae
Division:	†Pteridospermatophyta
Order:	†Medullosales
Family:	†Cyclopteridaceae
Genus:	†Cyclopteris Brongniart, 1828^[1]
Species
Cyclopteris rhomboidea and see text