''Gangamopteris'' is a genus of Carboniferous-Permian plants, very similar to '' Glossopteris''. Previously, it was classified as

fern The ferns (Polypodiopsida or Polypodiophyta) are a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. They differ from mosses by being vascular, i.e., having specialized tissue ...

with reproduction by seed. The genus is usually only applied to leaves, making it a

form taxon Form classification is the classification of organisms based on their morphology (biology), morphology, which does not necessarily reflect their biological relationships. Form classification, generally restricted to palaeontology, reflects uncer ...

. ''Gangamopteris'' dominates some coal deposits, such as those of the Beacon Supergroup. In Paleorrota

geopark A geopark is a protected area with internationally significant geology within which Sustainability, sustainable development is sought and which includes tourism, conservation, education and research concerning not just geology but other relevant s ...

Rio Grande do Sul Rio Grande do Sul (, ; ; "Great River of the South") is a Federative units of Brazil, state in the South Region, Brazil, southern region of Brazil. It is the Federative units of Brazil#List, fifth-most populous state and the List of Brazilian s ...

Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...

, were found ''Gangamopteris obovata''. Were located on the Mina ''Morro do Papaléo'' in Mariana Pimentel and ''Quitéria'' in Pantano Grande. Dating from the

Permian The Permian ( ) is a geologic period and System (stratigraphy), stratigraphic system which spans 47 million years, from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.902 Mya. It is the s ...

and were in the Rio Bonito Formation. In the town of Cachoeira do Sul, met ''Gangamopteris sulriograndensis'' were discovered.NOVA ESPÉCIE DO GÊNERO GANGAMOPTERIS NO PERMIANO INFERIOR DA BACIA DO PARANÁ, RS, BRASIL
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References

Prehistoric plant genera Pteridospermatophyta Carboniferous plants Permian plants Mangrullo Formation {{permian-plant-stub