Osmunda claytoniites
Encyclopedia
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.
Osmunda claytoniites
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....
is an extinct fern in the genus Osmunda
Osmunda
Osmunda is a genus of primarily temperate-zone ferns of family Osmundaceae. Five to ten species have been listed for this genus.The species have completely dimorphic fronds or pinnae , green photosynthetic sterile fronds, and non-photosynthetic spore-bearing fertile pinnae, with large, naked...
, very similar to the extant fern Osmunda claytoniana. It has been found in the Upper Triassic
Triassic
The Triassic is a geologic period and system that extends from about 250 to 200 Mya . As the first period of the Mesozoic Era, the Triassic follows the Permian and is followed by the Jurassic. Both the start and end of the Triassic are marked by major extinction events...
of Antarctica.