Gangamopteris
Encyclopedia
Gangamopteris is a genus of Carboniferous-Permian seed fern, very similar to Glossopteris
. The genus is usually only applied to leaves, making it an form taxon. Gangamopteris dominates some coal deposits, such as those of the Beacon sandstone
.
Glossopteris
Glossopteris is the largest and best-known genus of the extinct order of seed ferns known as Glossopteridales ....
. The genus is usually only applied to leaves, making it an form taxon. Gangamopteris dominates some coal deposits, such as those of the Beacon sandstone
Beacon sandstone
The Beacon sandstone is a geological formation exposed in Antarctica and deposited from the Devonian to the Triassic . The sandstone was originally described as a formation, and upgraded to group and supergroup as time passed. It contains a sandy member known as the Beacon heights...
.