Classification of the family Grammysiidae

Fm. †Grammysiidae Miller 1877
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Andinodesma radicostata Rehfeld and Mehl 1989
G. †Arenigomya Cope 1996
G. †Asketomorpha Hoare et al. 1989
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Asketomorpha grandis Hoare et al. 1989
G. †Cercomyopsis Meek 1871
G. †Cimitaria Hall and Whitfield 1869
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Cimitaria guangxiensis Zhang 1977
Cimitaria liscina Kříž 2008
G. †Cuneamya Hall and Whitfield 1875
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Cuneamya elliptica Miller 1881
Cuneamya miamiensis Hall and Whitfield 1875
Cuneamya neglecta Hall and Whitfield 1875
Cuneamya scapha Hall and Whitfield 1875
Cuneamya scapha brevior Foerste 1914
G. †Ectogrammysia Hoare et al. 1989
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Ectogrammysia crassatis Hoare et al. 1989
Ectogrammysia hannibalensis Shumard and Swallow 1858
Ectogrammysia prolata Hoare 1993
G. †Fuchsella Dahmer 1942
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Fuchsella amygdalina Sowerby 1827
G. †Glyptoconcha Zhang and Pojeta 1986
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Glyptoconcha elegans Zhang and Pojeta 1986
G. †Grammysia de Verneuil 1847
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Subg. †Grammysia (Grammysioidea) Williams 1916
Grammysia arcuata Conrad 1841
Grammysia minor Walcott 1884
Subfm. †Grammysiinae Miller 1877
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G. †Cardiomorpha de Koninck 1844
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Cardiomorpha bihatiensis Krumbeck 1924
Cardiomorpha digglesi Smith 1927
Cardiomorpha gymnitum Kittl 1903
Cardiomorpha haydeni Diener 1907
Cardiomorpha indica Waagen 1881
Cardiomorpha inflata Girty 1910
Cardiomorpha minuta Johnston 1887
Cardiomorpha missouriensis Shumard and Swallow 1858
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Invalid names: Nucula cylindrica McChesney 1859 [synonym], Nucula mercerensis McChesney 1868 [synonym]
Cardiomorpha nuggetensis Trechmann 1917
Cardiomorpha obovata Hoare 1993
Cardiomorpha pinguis Reed 1936
G. †Grammysioidea Williams 1916
G. †Prothyris Meek 1871
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Subg. †Prothyris (Amphikoilum) Novojilov 1956
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Prothyris (Amphikoilum) bilobata Pogorevitsch 1975
Subg. †Prothyris (Lophoprothyris) Hoare et al. 1989
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Prothyris (Lophoprothyris) crista Hoare et al. 1989
Prothyris (Prothyris) acuticarinata Busanus and Hoare 1991
Prothyris (Prothyris) cilindricus Muromtseva and Guskov 1984
Prothyris contorta Whidborne 1896
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Invalid names: Prothyris bergica Drevermann 1902 [synonym], Prothyris scalprata Whidborne 1896 [synonym], Sanguinolites mimus Whidborne 1896 [synonym]
Prothyris elongatus Biakov 2009
Prothyris recta Whidborne 1896
Prothyris soleniformis Elias 1957
Prothyris stubblefieldi Wilson 1963
G. †Sedgwickia McCoy 1844
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Sedgwickia topekaensis Shumard 1860
G. †Leinzia
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Leinzia curta Beurlen 1954
G. †Sphenotus Hall 1884
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Sphenotus aeolus Hall and Whitfield 1869
Sphenotus altidorsatus Easton 1962
Sphenotus branneri Girty 1910
Sphenotus cataractes Reed 1944
Sphenotus cherokeense Snider 1915
Sphenotus dubius Girty 1910
Sphenotus gibsonense Snider 1915
Sphenotus hicksii Whidborne 1896
Sphenotus meslerianus Girty 1910
Sphenotus monroensis Worthen 1884
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Invalid names: Sanguinolites acutiliratus Croneis 1930 [synonym], Sphenotus vulgaris Croneis 1930 [synonym]
Sphenotus oklahomense Snider 1915
Sphenotus pisinnus Hoare et al. 1989
Sphenotus quadriplicatum Snider 1915
Sphenotus solenoides Hall 1870
Sphenotus tentoriolus Chronic 1949
Sphenotus tiogensis McAlester 1962
G. †Zaidiomysia Guo 1988
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Invalid names: Cuneamyinae Morris et al. 1991 [empty], Protomyidae Pomel 1853 [synonym]