Kingdom Plantae Order Osmundales Genus Osmunda | Division Pteridophyta Family Osmundaceae Rank Species | |
Class Polypodiopsida /
 Pteridopsida (disputed) Similar Interrupted Fern, Osmundaceae, Cinnamon Fern, Osmunda, Osmunda regalis | ||
Osmunda claytoniites is an extinct fern in the genus Osmunda, very similar to the extant fern Osmunda claytoniana. It has been found in the Upper Triassic of Antarctica.
References
Osmunda claytoniites Wikipedia(Text) CC BY-SA