Classification of the family Osmundaceae
Fm. †Osmundaceae Berchtold and Presl
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G. †Acrostichites Goeppert 1836
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†Acrostichites brevipennis Ward 1900
†Acrostichites coniopteroides Ward 1900
†Acrostichites densifolius Fontaine 1883
†Acrostichites fructifer Ward 1900
†Acrostichites linnaeaefolius Bunbury 1847
†Acrostichites microphyllus Fontaine 1883
†Acrostichites princeps Presl 1841
†Acrostichites tenuifolius Emmons 1857
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Invalid names: Acrostichites rhombifolius Fontaine 1883 [synonym]
†Acrostichites williamsonis Brongniart 1834
G. †Baculatisporites Thomson and Pflug 1953
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†Baculatisporites clavaeoides Sah and Jain 1965
†Baculatisporites comaumensis Potonie 1953
†Baculatisporites emarginatus Sah and Jain 1965
†Baculatisporites kachaikensis Archangelsky and Llorens 2005
†Baculatisporites pileolus Reyre 1973
†Baculatisporites sehoraensis Sukh-Dev 1961
†Baculatisporites turbioensis Archangelsky 1972
G. Claytosmunda I 2016
G. †Millerocaulis Tidwell 1986
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†Millerocaulis australis Vera 2008
†Millerocaulis embreei Stockey and Smith 2000
†Millerocaulis tekelili Vera 2012
G. Osmunda Linnaeus 1753
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†Osmunda arctica Heer 1883
†Osmunda delawarensis Berry 1906
†Osmunda dicksonioides Fontaine 1889
†Osmunda greenlandica Brown 1962
†Osmunda heerii Gaudin 1908
†Osmunda hollicki Knowlton 1918
†Osmunda lignita Giebel 1857
†Osmunda macrophylla Penhallow 1908
†Osmunda montanensis Knowlton 1905
†Osmunda novaecaesarae Berry 1907
†Osmunda obergiana Heer 1895
†Osmunda occidentale Knowlton 1917
†Osmunda spectabilis Willdenow 1910
†Osmunda sphenopteroides Fontaine 1889
G. †Osmundacaulis Miller 1967
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†Osmundacaulis amarjolense Sharma 1973
†Osmundacaulis estipulare Sharma et al. 1979
†Osmundacaulis guptai Sharma 1973
†Osmundacaulis indica Sharma 1973
†Osmundacaulis rajmahalense Gupta 1970
†Osmundacaulis sahnii Vishnu-Mittre 1956
G. †Osmundasporites Wolff
G. †Osmundites Unger 1854
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†Osmundites dowkeri Carruthers 1870
†Osmundites schemnicensis Unger 1854
†Osmundites skidegatensis Penhallow 1902
G. †Osmundopsis Harris 1931
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†Osmundopsis rafaelii Escapa and Cuneo 2012
†Osmundopsis sturii Raciborski 1890
†Osmundopsis zunigai Coturel et al. 2018
G. †Phyllopteroides Medwell 1954
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†Phyllopteroides antarctica Cantrill and Nagalingum 2005
†Phyllopteroides dentata Medwell 1954
†Phyllopteroides laevis Cantrill and Webb 1987
G. †Rotverrusporites Döring 1964
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†Rotverrusporites granularis Doring 1976
†Rotverrusporites labratus Archangelsky and Villar de Seoane 1998
†Rotverrusporites tenuis Doring 1964
G. †Rugulatisporites Pflug and Thomson 1953
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†Rugulatisporites caperatus van Hoeken-Klinkenberg 1964
†Rugulatisporites chubutensis Baldoni 1992
†Rugulatisporites mallatus Stover 1973
†Rugulatisporites micraulaxus Partridge 1973
†Rugulatisporites neuquenensis Volkheimer 1972
†Rugulatisporites neuquensis Gerth 1925
†Rugulatisporites quintus Thomson and Pflug 1953
G. †Stellatheca Danzea 1956
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†Stellatheca latiloba Danze 1956
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Invalid names: Pecopteris lyratifolia Goeppert and Lesquereux 1880 [replaced]
†Stellatheca ornata Lesquereux 1884
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Invalid names: Pecopteris halli Lesquereux and Langford 1958 [replaced], Pecopteris ornata Lesquereux 1884 [replaced], Pecopteris solida Lesquereux and Langford 1963 [replaced]
G. †Todites Seward 1900
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†Todites cacereii Escapa and Cuneo 2012
†Todites chilensis Herbst and Troncoso 1998
†Todites gaillardotii Brongniart 1828
†Todites indicus Oldham and Morris 1862
†Todites maoricus Retallack 1981
†Todites pattinsoniorum Holmes 1982
†Todites subtriangularis Mathur and Mathur 1969
†Todites williamsoni Brongniart 1900
Invalid names: Todisporangiaites Paradkar and Barlinge 1980 [nomen nudum]