{{Short description|Extinct genus of ferns}} {{Automatic taxobox | fossil_range = {{fossil range|Permian}} | taxon = Phyllotheca | authority = ''Brongniart'' (1828) | subdivision_ranks = Species | subdivision = * ''P. australis'' * ''P. brevifolia'' * ''P. griesbachii'' * ''P. indica'' * ''P. longifolia'' }} '''''Phyllotheca''''' is an extinct genus of equisetalean, related to modern horsetails. It is known from the Permian period,<ref>{{Citation |last=Neregato |first=Rodrigo |title=Diversity and Stratigraphic Distribution of Sphenophytes in the Permian of the Paraná Basin, Brazil |date=2024 |work=Brazilian Paleofloras |pages=579–623 |editor-last=Iannuzzi |editor-first=Roberto |url=https://link.springer.com/10.1007/978-3-030-22526-1_16 |access-date=2026-04-11 |place=Cham |publisher=Springer Nature Switzerland |language=en |doi=10.1007/978-3-030-22526-1_16 |isbn=978-3-030-22525-4 |last2=Boardman |first2=Daiana Rockenbach |last3=Rohn |first3=Rosemarie |last4=Iannuzzi |first4=Roberto |editor2-last=Rößler |editor2-first=Ronny |editor3-last=Kunzmann |editor3-first=Lutz}}</ref> as well as possibly the Carboniferous.<ref>Djordjevic-Milutinovic, D. (2010). [https://nhmbeo.rs/wp-content/pdfovi/Bulletin-2010-02.pdf An overview of Palaeozoic and Mesozoic sites with macroflora in Serbia]. ''Bulletin of the Natural History Museum, Belgrade, 3'', 27–46.</ref> It was named was created in 1828, when Brongniart described the type species ''Phyllotheca australis'' coming from Hawkesbury River, Australia.<ref>[https://www.academia.edu/1097073/Uma_nova_especie_de_Phyllotheca_Brongniart_Townrow_no_Permiano_Inferior_da_Bacia_do_Parana_RS Uma nova espécie de Phyllotheca Brongniart]</ref>

==Species== * ''Phyllotheca australis'': Initially described by Brongniart coming from Australia. * ''Phyllotheca brevifolia'': Described by Roesler, Boardman and Iannuzzi. Found in Paleorrota geopark on ''Morro Papaléo'' in Mariana Pimentel, Brazil. The area is in Rio Bonito Formation dating from Sakmarian in the Permian. * ''Phyllotheca indica'': Described by Towrow in 1955. Coming from India. * ''Phyllotheca longifolia'': Described by Roesler and Boardman. Found in Paleorrota geopark on Morro Papaléo in Mariana Pimentel, Brazil. The area is in Rio Bonito Formation dating from Sakmarian in the Permian.<ref>[http://www.sbpbrasil.org/revista/edicoes/15_2/RBP_03_Roesler_&_Iannuzzi_Final.pdf NOVA ESPÉCIE DE SPHENOPHYTA NO EOPERMIANO DO RIO GRANDE DO SUL]</ref> Claimed records from the Jurassic of Poland are doubtful and may represent ''Neocalamites'' instead.<ref>{{Cite journal |last=Jarzynka |first=Agata |last2=Pacyna |first2=Grzegorz |date=2015-12-01 |title=Fossil flora of Middle Jurassic Grojec clays (southern Poland). Raciborski’s original material reinvestigated and supplemented. I. Sphenophytes |url=https://acpa.botany.pl/Fossil-flora-of-Middle-Jurassic-Grojec-clays-n-southern-Poland-Raciborski-s-original,119144,0,2.html |journal=Acta Palaeobotanica |volume=55 |issue=2 |pages=149–181 |doi=10.1515/acpa-2015-0013 |issn=2082-0259}}</ref>

==References== {{Reflist}}

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Category:Equisetales Category:Permian plants Category:Prehistoric plant genera Category:Permian first appearances Category:Permian genus extinctions Category:Fossil taxa described in 1828

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