PBDB Taxon

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Poromyata

Bivalvia

Taxonomy

Poromyata was named by Ridewood (1903). It is extant.

It was assigned to Cardiidia by Carter et al. (2011).

Subtaxa

Pandorida, Pholadomyida, Poromyida, Thraciida

Synonymy list

Year	Name and author
1903	Poromyata Ridewood
2011	Poromyata Carter et al. p. 18

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Bivalvia

Rank	Name	Author
—	Eubivalvia
subclass	Autobranchia	(Groblen 1894)
infraclass	Heteroconchia	(Gray 1854)
—	Cardiomorphi	Ferussac 1822
—	Cardioni	Ferussac 1822
—	Cardiidia	Ferussac 1822
—	Poromyata	Ridewood 1903
—	Poromyata	Ridewood 1903

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Unr. Poromyata Ridewood 1903

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Or. Pandorida Stewart 1930

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Superfm. Clavagelloidea d'Orbigny 1844

Fm. Clavagellidae d'Orbigny 1843

G. †Ascaulocardium Pojeta and N. F. 1987

†Ascaulocardium armatum Morton 1833

G. Brechites Guettard 1770 [watering pot shell]

Subg. †Brechites (Brechites) Guettard 1770

G. Clavagella Blainville 1817

Subg. Clavagella (Bryopa) Gray 1847

Subg. †Clavagella (Clavagella) Blainville 1817

Subg. †Clavagella (Dacosta) Gray 1858

†Clavagella armata Morton 1833

Clavagella echinata Lamarck 1818

†Clavagella liratum Tate 1887

†Clavagella primigenia Deshayes 1857

†Clavagella semisulcata Forbes 1846

G. Humphreyia Gray 1858

G. Penicillus Bruguière 1789

Subg. Penicillus (Foegia) Gray 1847

Subg. †Penicillus (Penicillus) Bruguière 1789

Subg. †Penicillus (Pseudobrechites) Magne 1941

Subg. Penicillus (Warnea) Gray 1858

G. Stirpulina Stoliczka 1870

†Stirpulina coronata Deshayes 1824

†Stirpulina saulae Stallwood 1995

†Stirpulina veronensis Savazzi 1982

†Stirpulina vicentina Savazzi 1982

Invalid names: Aspergillidae Gray 1858 [replaced], Brechitinae Stoliczka 1870 [empty], Bryopinae Tryon 1862 [empty], Humphreyiidae Gray 1858 [synonym], Penicillinae Gray 1858 [empty]

Invalid names: Penicillidae Gray 1858 [empty]

Superfm. Pandoroidea Rafinesque 1815

Fm. Laternulidae Hedley 1918

G. †Anatimya Conrad 1860

†Anatimya anteradiata Conrad 1860

†Anatimya virgata Stephenson 1952

G. †Cercomya Agassiz 1843

†Anatina (Cercomya) punctata Stanton 1899

Subg. †Cercomya (Capillimya)

†Cercomya bottegoi Jaboli 1959

†Cercomya deserti Douvillé 1916

†Cercomya pinguis Agassiz 1843

†Cercomya schoensis Futterer 1897

†Cercomya undulata Sowerby 1827

G. Laternula Röding 1798

Subg. †Laternula (Laternulina) Habe 1952

†Laternula albertensis Russell and Landes 1937

†Laternula alisoensis Packard 1922

†Laternula fuchsi Hoernes 1875

†Laternula jidiensis Guo 1985

†Laternula valenciennesii Reeve 1860

G. †Orthomya Guo 1985

†Orthomya puerensis Guo 1985

G. †Periplomya Conrad 1870

†Periplomya inequilateralis Gabb 1864

†Periplomya oregonensis Gabb 1864

†Periplomya quadrata Gabb 1869

†Periplomya reddingensis Anderson 1938

†Periplomya trinitensis Anderson 1938

†Periplomya tryoniana Gabb 1864

†Periplomya whitneyi Gabb 1864

G. †Planariomya Chen and Xu 1980

†Planariomya hunanensis Chen and Xu 1980

G. †Platymyoidea Cox 1964

†Platymyoidea dilatata Agassiz 1838

†Platymyoidea longa Buvignier 1852

†Platymyoidea texana Cragin 1893

Invalid names: Platymya Agassiz 1838 [replaced]

G. †Plectomya Loriol 1868

G. †Tulongella Chen and Chen 1976

†Tulongella qinghaiensis Lu and Chen 1986

†Tulongella xizangensis Chen and Chen 1976

Invalid names: Anatinidae Gray 1840 [replaced]

Fm. Lyonsiidae Fischer 1887

G. Entodesma Philippi 1845

Subg. †Entodesma (Agriodesma) Dall 1909

G. Lyonsia Turton 1822

Subg. †Lyonsia (Endomargarus)

Lyonsia arenosa Möller 1842

Lyonsia californica Conrad 1837 [California lyonsia]

†Lyonsia heberti Deshayes 1857

Lyonsia hyalina Conrad 1831

†Lyonsia pakistanica Eames 1951

†Lyonsia subaequilateralis Lundgren 1895

†Lyonsia venturaensis Clark and Woodford 1927

Invalid names: Pandorina Scacchi 1833 [synonym]

G. Mytilimeria Conrad 1837

Mytilimeria nuttalli Conrad 1837 [bladderclam]

Invalid names: Spinolyonsiellidae Scarlato and Starobogatov 1983 [synonym]

Fm. Pandoridae Rafinesque 1815

G. Clidiophora Carpenter 1864

Clidiophora claviculata Carpenter 1856

†Pandora (Clidiophora) crassidens Conrad 1838

G. Foveadens Dall 1915

Foveadens panamensis Dall 1915

G. Pandora Bruguière 1797

Subg. †Pandora (Frenamya) Iredale 1930

Subg. Pandora (Heteroclidus) Dall 1903

Subg. Pandora (Pandora) Bruguière 1797

Subg. Pandora (Pandorella) Conrad 1863

Invalid names: Kennerlia Carpenter 1864 [synonym]

Pandora cistula Gould 1850

Invalid names: Kennerlyia patagonica Dall 1915 [synonym]

†Pandora copiosa Sorgenfrei 1958

†Pandora dilatata Deshayes 1857

†Pandora eocapsella Hickman 2014

Pandora grandis Dall 1877

Pandora inaequivalvis Linnaeus 1758

†Pandora laevis Hickman 1969

†Pandora pimaeva Deshayes 1857

†Pandora scapha Gabb 1866

†Pandora washingtonensis Weaver 1916

Invalid names: Adelosiphonia Dall 1895 [invalid subgroup]

Or. Pholadomyida Newell 1965

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G. †Arcticlam Marincovich, Jr. 1993

†Arcticlam nanseni Marincovich, Jr. 1993

G. †Argyromya

G. Bontaea

G. †Dyasma

Superfm. †Edmondioidea King 1850

Fm. †Edmondiidae King 1850

G. †Allorisma King 1844

†Allorisma albequus Beede 1907

†Allorisma altirostrata Meek and Hayden 1858

†Allorisma carniolicum Bittner 1901

†Allorisma consanguinatum Herrick 1888

†Allorisma costatum Meek and Worthen 1869

†Allorisma depressa Ogilvie Gordon 1927

†Allorisma dubium Waagen 1881

†Allorisma inflectoventris Harrington 1955

†Allorisma padangensis Roemer 1880

†Allorisma stachei Airaghi 1907

†Allorisma tornquisti Airaghi 1907

†Allorisma waageni Reed 1944

G. †Edmondia de Koninck 1841

†Edmondia acutangula Roemer 1870

†Edmondia anodontoides Meek 1875

†Edmondia aspenwallensis Meek 1871

†Edmondia aspinwallensis Meek 1871

†Edmondia athenae Whidborne 1896

†Edmondia bellula Girty 1909

†Edmondia circularis Walcott 1884

†Edmondia crassa Girty 1911

†Edmondia dubia Johnston 1887

†Edmondia elongata Howse 1848

Invalid names: Edmondia murchisoniana King 1848 [synonym]

†Edmondia equilateralis Girty 1910

†Edmondia filigrana de Koninck 1878

†Edmondia gibbosa Swallow 1858

†Edmondia glabra Meek 1872

†Edmondia grandis Stuckenberg 1905

†Edmondia guembeli Gemmellaro 1896

†Edmondia hamlingii Whidborne 1896

†Edmondia hautmanni Prinoth and Posenato 2023

†Edmondia hudsoni Dickins 1999

†Edmondia isocosmica Gemmellaro 1896

†Edmondia medon Walcott 1884

†Edmondia meekiana Herrick 1887

†Edmondia multilamellosa Gemmellaro 1896

†Edmondia nebrascensis Geinitz 1866

†Edmondia netschajewi Muromtseva 1981

†Edmondia nodulifera Hoare et al. 1978

†Edmondia omolonica Muromtseva 1984

†Edmondia ovata Meek and Worthen 1873

†Edmondia phosphatica Girty 1910

†Edmondia pinonensis Meek 1877

†Edmondia pitkinensis Snider 1915

†Edmondia prichardi Dickins 1963

†Edmondia radiata Hall 1858

†Edmondia rotunda Beede 1907

Invalid names: Edmondia cumminsi Beede 1907 [synonym]

†Edmondia rudis McCoy 1878

†Edmondia soleniformis Cox 1857

†Edmondia suborbiculata Swallow 1858

†Edmondia suborbiculata Girty 1911

†Edmondia sulcata Fleming 1828

Invalid names: Sanguinolaria sulcata Phillips 1836 [synonym]

†Edmondia tiesseni Frech 1911

†Edmondia unioniformis Phillips 1836

†Edmondia vetusta Whiteaves 1897

†Edmondia yachihoensis Grabau 1934

Invalid names: Broeckia de Koninck 1885 [synonym]

G. †Globicarina Waterhouse 1965

†Globicarina grossula Waterhouse 1965

G. †Notomya M'Coy 1847

†Notomya gigantissima Waterhouse 1969

G. †Scaldia de Ryckholt 1847

†Scaldia cassiana Bittner 1895

†Scaldia longa Whidborne 1896

Invalid names: Allorismatidae Beurlen 1954 [synonym]

Fm. †Megadesmidae Vokes 1967

G. †Astartila Dana 1847

†Astartila blatchfordi Hosking 1931

†Astartila condoni Dickins 1957

†Astartila elusa Reed 1932

†Astartila fletcheri Dickins 1956

†Astartila intrepida Dana 1847

Invalid names: Astartila corpulenta Dana 1849 [synonym], Astartila cyclas Dana 1847 [synonym], Astartila cyprina Dana 1847 [synonym], Astartila cytherea Dana 1847 [synonym], Astartila polita Dana 1847 [synonym], Astartila robertsii Johnston 1887 [synonym], Astartila transversa Dana 1847 [synonym], Pachydomus danai de Koninck 1877 [synonym], Pachydomus ovalis M'Coy 1847 [synonym], Pachydomus pusillus M'Coy 1847 [synonym]

†Astartila obscura Dickins 1957

†Astartila runnegari Waterhouse 1988

†Astartila salaria Reed 1936

†Astartila sedgwicki Waterhouse 1987

†Astartila tumida Dickins 1963

G. †Carnauba Anelli et al. 2009

†Carnauba oiticica Anelli et al. 2009

G. †Crassiconcha

†Crassiconcha groenlandica Frebold 1932

G. †Ferrazia Reed 1932

†Ferrazia cardinalis Cowper Reed 1932

G. †Huabiella David et al. 2011

†Huabiella compressa David et al. 2011

G. †Jacquesia Mendes 1944

†Jacquesia brasiliensis Cowper Reed 1929

Subfm. †Megadesminae Vokes 1967

G. †Australomya Runnegar 1969

G. †Megadesmus Sowerby 1838

Subg. †Megadesmus (Megadesmus) Sowerby 1838

†Megadesmus borealis Muromtseva 1984

†Megadesmus deflatus Waterhouse 1983

†Megadesmus dembskajae Guskov 1984

†Megadesmus globlosus Sowerby 1838

†Megadesmus globosus Sowerby 1838

†Megadesmus gryphoides de Koninck 1876

†Megadesmus nobilissimus de Koninck 1876

Invalid names: Edmondia intermedia de Koninck 1876 [synonym]

†Megadesmus ovalis Sowerby 1847

†Megadesmus pristinus Runnegar 1972

†Megadesmus robusta Laseron 1910

†Megadesmus trigonalis Johnston 1887

Invalid names: Cleobis Dana 1847 [synonym]

Subfm. †Plesiocyprellinae Simóes et al. 1997

G. †Beurlenella Anelli et al. 2010

G. †Guiratingia Petri and Fulfaro 1966

Subfm. †Plesiocyprinellinae Simóes et al. 1997

G. †Casterella Mendes 1952

G. †Itatamba Simóes et al. 1997

G. †Othonella Mendes 1963

G. †Plesiocyprinella Holdhaus 1918

G. †Roxoa Mendes 1952

G. †Runnegariella Simoes et al. 1995

G. †Tambaquyra Simões et al. 2000

G. †Pleurikodonta Runnegar 1965

†Pleurikodonta elegans Runnegar 1965

†Pleurikodonta gemma Dana 1847

Invalid names: Venus gregaria M'Coy 1847 [synonym]

G. †Pyramus Dana 1847

†Pyramus concentricus Etheridge 1872

Invalid names: Edmondia obovata Etheridge 1872 [synonym]

†Pyramus igori Biakov 2005

†Pyramus laevis Sowerby 1838

Invalid names: Megadesmus antiquatus Sowerby 1838 [synonym], Megadesmus cuneatus Sowerby 1838 [synonym], Pyramus ellipticus Dana 1847 [synonym]

†Pyramus myiformis Dana 1847

Invalid names: Maeonia axinia Dana 1849 [synonym], Notomya clavata M'Coy 1847 [synonym], Notomya ovalis M'Coy 1847 [synonym], Notomya securiformis M'Coy 1847 [synonym]

†Pyramus myriformis Danna 1847

†Pyramus nelliae Biakov 2005

†Pyramus permianus Lutkevitch and Lobanova 1960

†Pyramus planus Nakazawa and Newell 1968

†Pyramus primigenius Gonzalez 1972

†Pyramus silicius Waterhouse 1978

†Pyramus simmetricus Lutkevitch and Lobanova 1960

Invalid names: Pyramus aenigmaeformis Biakov 2012 [nomen nudum]

G. †Romaniamya Friesenbichler et al. 2019

†Romaniamya mahmudiaensis Friesenbichler et al. 2019

G. †Unklesbayella Hoare et al. 1978

†Unklesbayella geinitzi Meek 1867

Invalid names: Astartilinae Waterhouse 1969 [empty]

Fm. †Pachydomidae Fischer 1887

G. †Anhembia Mezzalira et al. 1990

G. †Maackia Mendes 1954

†Maackia contorta Mendes 1954

Subfm. †Pachydominae Fischer 1887

Tr. †Holdhausiellini Beurlen 1954

Tr. †Plesiocyprinellini Simoes 1997

G. †Relogiincola Guerrini et al. 2020

Invalid names: Astartilini Waterhouse 1969 [empty], Pachydomini Fischer 1887 [empty]

G. †Pachydomus Morris 1845

Invalid names: Ferraziidae Scarlato and Starobogatov 1979 [synonym]

G. †Farrazia

G. †Gissaromya Tschepikova 1971

†Gissaromya abramovi Repin 2008

G. †Indomya

G. †Obrimia

G. †Parapachytraga

Superfm. Pholadomyoidea King 1844

G. †Aksumya Kiel 2018

†Aksumya krystyni Kiel 2018

G. †Barcoona

†Barcoona gradilis Kendrick and Vartak 2007

Fm. †Chaenomyidae Waterhouse 1966

Subfm. †Chaenomyinae Waterhouse 1966

G. †Chaenomya Meek 1864

G. †Oblicarina Waterhouse 1967

†Oblicarina carinata Etheridge 1892

†Oblicarina translata Reed 1932

G. †Oestomya Moesch 1874

Fm. †Margaritariidae Vokes 1964

G. †Margaritaria

†Margaritaria abrupta Conrad 1832

Fm. Pholadomyidae King 1844

G. Agrawalimya Singh et al. 1982

†Agrawalimya pseudosulcata Singh et al. 1982

G. †Anomalopleuroidea Cox 1964

†Anomalopleuroidea elisae Leonardi 1943

Invalid names: Anomalopleura Leonardi 1943 [replaced]

G. †Arcomya Agassiz 1838

†Arcomya deserti Douvillé 1916

†Arcomya undulata Gabb 1869

†Pholadomya (Arcomya) sansonii Salomon 1895

G. †Cortinia Leonardi 1943

†Cortinia catharinae Leonardi 1943

G. †Deltamya Burmester 2004

G. †Dianomya Guo 1985

†Dianomya lirulata Guo 1985

G. †Girardotia

G. †Goniomya Agassiz 1842

Subg. †Goniomya (Goniomya) Agassiz 1842

†Goniomya americana Meek and Hayden 1856

†Goniomya angulifera Sowerby 1819

†Goniomya aperta Gabb 1870

†Goniomya disangula Astre 1934

†Goniomya hemicostata Morris and Lycett 1855

†Goniomya lacunosa Stefanini 1939

†Goniomya literata Sowerby 1819

Invalid names: Goniomya arctica Sokolov and Bodylevsky 1931 [synonym]

†Goniomya matonabbei McLearn 1933

†Goniomya renevieri Jeannet 1913

†Goniomya singaporensis Newton 1906

Invalid names: Allorisma insolitum Thomas 1928 [synonym], Goniomya scrivenori Newton 1906 [synonym]

†Goniomya verbana Parona 1890

†Goniomya vespera Anderson 1938

†Pholadomya (Goniomya) beyrichi Choffat 1888

G. †Homomya Agassiz 1843

†Homomya albertii Volz 1837

†Homomya alsatica Agassiz 1842

†Homomya austinensis Shattuck 1903

†Homomya bisinuosa White 1887

†Homomya budaensis Whitney 1911

Invalid names: Homomya auroraensis Perkins 1961 [synonym]

†Homomya caffii Desio 1929

†Homomya gallatinensis Stanton 1899

†Homomya gejiuensis Guo 1985

†Homomya gibbosa Sowerby 1814

†Homomya hamatoides

†Homomya impressa Alberti 1864

†Homomya inornata Sowerby 1837

†Homomya kokeni Philippi 1898

†Homomya lariana Stoppani 1857

†Homomya neuquena Leanza 1942

†Homomya refugium White 1887

†Homomya signicollina Marwick 1953

†Homomya sublariana Krumbeck 1913

†Homomya thrasheri Stephenson 1941

†Homomya thrusheri Stephenson 1941

†Homomya ventricosa Agassiz 1843

†Homomya washitae Cragin 1894

G. †Homoya Agassiz 1843

G. †Machomya

G. †Molukkana Krumbeck 1923

†Molukkana seranensis Krumbeck 1923

G. †Neoburmesia

G. †Osteomya Moesch 1874

Subg. †Osteomya (Yunnanomya) Guo 1985

†Osteomya dilata Phillips 1829

G. †Pachymya Sowerby 1826

Subg. †Pachymya (Pachymya) Sowerby 1826

Subg. †Pachymya (Trichomyella)

†Pachymya austinensis Shumard 1859

†Pachymya gigas Sowerby 1826

G. Parilimya Melvill and Standen 1899

G. Pholadomya Sowerby 1823

Subg. †Pholadomya (Bucardiomya) Rollier 1912

Invalid names: Bureiamya Voronetz 1938 [synonym]

Subg. †Pholadomya (Kanakimya) Campbell and Grant-Mackie 1995

Subg. †Pholadomya (Moewakamya) Campbell and Grant-Mackie 1995

Subg. Pholadomya (Pholadomya) Sowerby 1823

Subg. †Pholadomya (Triplicosta) Cooper 1896

†Pholadomya acuminata Hartmann 1830

†Pholadomya adversa Riedel 1932

†Pholadomya albertensis Warren 1933

†Pholadomya altumbonata Anderson 1938

†Pholadomya aubryi Douville 1886

†Pholadomya borealis Warren 1947

Pholadomya candida Sowerby 1823

†Pholadomya cardissoides Agassiz 1842

†Pholadomya carinata Goldfuss 1838

†Pholadomya claibornensis Aldrich 1886

†Pholadomya clementina Anderson 1938

†Pholadomya collombi Coquand 1866

†Pholadomya connectans Forbes 1846

†Pholadomya corbuloides Deshayes 1864

†Pholadomya cuneiformis Futterer 1897

†Pholadomya cupressensis Russell and Landes 1937

†Pholadomya decussata Mantell 1822

†Pholadomya deweyensis Speden 1970

†Pholadomya diegoensis Anderson 1958

†Pholadomya distorta Anderson 1938

†Pholadomya elongata Münster 1840

†Pholadomya esmarcki Nilsson 1827

†Pholadomya esmarki Nilsson 1827

†Pholadomya falconensis Hodson and Hodson 1927

†Pholadomya gigantea Sowerby 1836

†Pholadomya granulifera Blanford 1870

†Pholadomya gronlandica Lundgren 1895

†Pholadomya harrigani Hall and Ambrose 1916

†Pholadomya hians Riedel 1933

†Pholadomya hulenana Anderson 1938

†Pholadomya inaequiplicata Stanton 1899

†Pholadomya incurvata Riedel 1933

†Pholadomya kernensis Wiedey 1928

†Pholadomya laeviuscula Agassiz 1842

†Pholadomya lagenalis Schafhaeutl 1852

†Pholadomya lirata Sowerby 1818

†Pholadomya littlei Gabb 1876

†Pholadomya lorica Stoppani 1857

†Pholadomya margaritata Stoppani 1857

†Pholadomya marylandica Conrad 1842

†Pholadomya mclearni Russell and Landes 1937

†Pholadomya miocenica Ponzi 1876

†Pholadomya mori Stoppani 1865

†Pholadomya munita Stoppani 1857

†Pholadomya murrayensis Hanna 1927

†Pholadomya nasuta Gabb 1864

†Pholadomya nevadana Gabb 1870

†Pholadomya nitanae McLearn 1929

†Pholadomya nonaimensis Reagan 1924

†Pholadomya occidentalis Morton

†Pholadomya orbiculata Gabb 1864

†Pholadomya oregonensis Gabb 1869

†Pholadomya orientalis Douvillé 1916

†Pholadomya ovalis Sowerby 1819

†Pholadomya parahybensis Maury 1930

†Pholadomya paucicosta Roemer 1836

†Pholadomya pedernalis Roemer 1852

†Pholadomya percarinata Gillieron 1886

†Pholadomya phaseolus Stoppani 1857

†Pholadomya pholadoides Wilckens 1907

†Pholadomya pleuromyaeformis Choffat 1888

†Pholadomya puschi Goldfuss 1840

†Pholadomya qinghaiensis Wen 1979

†Pholadomya quenstedti Stoppani 1857

†Pholadomya ragazzii Pantanelli 1888

†Pholadomya ragsdalei Cragin 1895

†Pholadomya rigacci Ponzi 1876

†Pholadomya roemeri Whitfield 1885

†Pholadomya russelli Anderson 1938

†Pholadomya sanctaecrucis Pictet and Campiche 1865

†Pholadomya shattucki Böse 1910

Invalid names: Pholadomya roemeri Shattuck 1903 [replaced]

†Pholadomya sonorensis Gabb 1869

†Pholadomya stefaninii Jaboli 1959

†Pholadomya subelongata Meek 1857

Invalid names: Pholadomya brewerii Gabb 1864 [synonym], Pholadomya royana Whiteaves 1879 [synonym]

†Pholadomya sublirata Blanford 1870

†Pholadomya subventricosa Meek and Hayden 1858

†Pholadomya valangiensis Pictet and Campiche 1864

†Pholadomya vasellii Monari 1994

†Pholadomya vaticana Ponzi 1876

†Pholadomya vignesi Lartet 1877

Invalid names: Pholadomya fontannesi Choffat 1886 [synonym]

†Pholadomya walli Maury 1925

Subfm. Pholadomyinae King 1844

G. †Cosmomya Holdhaus 1913

G. †Exochorhynchus

G. †Rhytimya Ulrich 1893

†Rhytimya colemani Stewart 1920

†Rhytimya compressa Ulrich 1893

†Rhytimya emma Billings 1862

†Rhytimya granulosa Wilson 1915

†Rhytimya kagawongensis Foerste 1914

†Rhytimya oehana Ulrich 1893

†Rhytimya radiata Ulrich 1893

G. †Tetorimya

G. †Triplicosta Cooper 1896

Invalid names: Arcomyidae Fischer 1887 [synonym]

G. †Sphenolium Miller 1889

†Sphenolium cuneiforme Miller 1889

Fm. †Ucumariidae Sanchez and Vaccari 2003

G. †Ucumaris Sanchez and Vaccari 2003

†Ucumaris conradoi Sanchez and Vaccari 2003

G. †Ucumaropsis Sánchez 2005

†Ucumaropsis lermaensis Sánchez 2005

Invalid names: Arenigomyidae Carter 2011 [empty], Pholadomyacea Gray 1847 [replaced]

Invalid names: Ceratomyoidea Arkell 1934 [empty], Clavagellina Newell 1965 [empty], Myochamoidea Bronn 1862 [empty], Pholadomyina Newell 1965 [empty]

Or. Poromyida Ridewood 1903

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Superfm. Cuspidarioidea Dall 1886

Fm. Cuspidariidae Dall 1886

G. †Boriesia

G. Cardiomya Adams 1864

Subg. †Cardiomya (Bowdenia) Dall 1903

Subg. Cardiomya (Cardiomya) Adams 1864

†Cardiomya alkiensis Durham 1944

†Cardiomya anaticepsella Hickman 2014

†Cardiomya comstockensis Turner 1938

Cardiomya costellata Deshayes 1833

Invalid names: Cardiomya gemma Verrill and Bush 1898 [synonym]

Cardiomya didyma Hinds 1843

Invalid names: Cuspidaria (Cardiomya) ecuadoriana Olsson 1961 [synonym]

†Cardiomya dolabraeformis Gabb 1864

†Cardiomya domenginica Vokes 1939

†Cardiomya elegantissima Hoernes 1875

Cardiomya gouldiana Hinds 1843

†Cardiomya hannibali Dickerson 1914

†Cardiomya israelskya Hanna 1927

†Cardiomya mansfieldi Olsson and Harbison 1953

Cardiomya ornatissima d'Orbigny 1853

†Cardiomya pavascotti Hickman 2014

Cardiomya pectinata Carpenter 1864 [pectinate cardiomya]

Invalid names: Cardiomya isolirata Bernard 1969 [synonym], Cardiomya oldroydi Dall 1924 [synonym], Cuspidaria (Cardiomya) californica Dall 1886 [synonym]

Cardiomya planetica Dall 1908

†Cardiomya russelli Hanna 1927

†Cardiomya silverensis Vokes 1939

†Cardiomya turneri Vokes 1939

G. Cuspidaria Dall 1886

Subg. Cuspidaria (Cuspidaria) Dall 1886

Subg. †Cuspidaria (Dianocuspidaria) Guo 1985

Subg. †Cuspidaria (Rhinoclama) Dall 1886

Subg. †Cuspidaria (Tergulina)

†Cuspidaria adelaidensis Tate 1887

†Cuspidaria alpis Bittner 1895

†Cuspidaria alpiscivicae Bittner 1895

†Cuspidaria attenuata Dall 1903

†Cuspidaria grandis Stephenson 1941

†Cuspidaria grovensis Stephenson 1941

†Cuspidaria latesulcata Tate 1887

†Cuspidaria moreauensis Meek and Hayden 1856

Cuspidaria obesa Lovén 1846

†Cuspidaria persulcata Stanton 1895

†Cuspidaria prima Aldrich and Meyer 1886

†Cuspidaria subrostrata Tate 1887

†Cuspidaria triassica Stoppani 1865

†Cuspidaria variabilis Warren 1934

†Cuspidaria ventricosa Meek and Hayden 1856

†Cuspidaria vorbei Hanna 1927

G. †Fabagella

G. Halonympha Dall and Smith 1886

G. †Kurodamya Okutani 1964

G. †Myonera Dall 1886

Subg. †Myonera (Myonera) Dall 1886

Subg. †Myonera (Rengea) Kuroda 1971

G. †Neuquemya Damborenea 2019

†Neuquemya leanzaorum Damborenea 2019

G. †Paracuspidaria Karapunar et al. 2020

G. Plectodon Carpenter 1864

Plectodon granulatus Dall 1881

Invalid names: Myoneridae Scarlato and Starobogatov 1983 [synonym], Neaera Gray 1834 [invalid subgroup]

Fm. Protocuspidariidae Scarlato and Starobogatov 1983

G. Protocuspidaria Allen and Morgan 1981

Fm. Spheniopsidae Gardner 1928

G. Spheniopsis

Invalid names: Halonymphidae Scarlato and Starobogatov 1983 [empty]

Superfm. Parilimyoidea Morton 1981

Fm. Parilimyidae Morton 1982

G. †Procardia Meek 1871

Superfm. Poromyoidea Dall 1886

Fm. Poromyidae Dall 1886

G. †Cetoconcha Dall 1886

Subfm. Cetomyinae Krylova 1997

G. †Cetomya Dall 1889

G. †Cymella Meek 1864

†Liopistha (Cymella) montanensis Henderson 1918

G. †Liopistha Meek 1864

†Leiopistha meekii White 1874

Subg. †Liopistha (Psilomya) Meek 1876

†Liopistha alternata Weller 1907

†Liopistha anaana Anderson 1902

†Liopistha glabra Warren 1934

†Liopistha ligeriensis d'Orbigny 1845

Invalid names: Homomya profunda White 1887 [synonym], Pholadomya molli Coquand 1862 [synonym]

†Liopistha protexta Conrad 1853

†Liopistha sergipensis White 1887

†Liopistha servesensis Choffat 1901

†Liopistha sulcata von Koenen 1898

†Liopistha superba Stoliczka 1871

†Liopistha ventricosa von Koenen 1897

G. †Megaporomya Ayoub-Hannaa et al. 2013

G. †Neaeroporomya Cossmann 1886

†Neaeroporomya pakistanica Eames 1951

†Neaeroporomya soriensis Eames 1951

G. Poromya Forbes 1844

Subg. Poromya (Dermatomya) Dall 1921

Subg. †Poromya (Mioporomya)

Subg. Poromya (Poromya) Forbes 1844

†Poromya globulosa Forbes 1846

†Poromya lata Forbes 1846

†Poromya mississippiensis

†Poromya tumida Cossmann 1882

G. †Pseudocuspidaria Eames 1951

†Pseudocuspidaria lakiensis Cox 1938

Invalid names: Dermatomyidae Scarlato and Starobogatov 1983 [synonym], Neaeroporomyidae Scarlato and Starobogatov 1983 [synonym], Perlaporomyidae Scarlato and Starobogatov 1983 [synonym]

Invalid names: Cetoconchidae Ridewood 1903 [empty]

Superfm. Verticordioidea Stoliczka 1871

Fm. Verticordiidae Stoliczka 1871

G. †Acreuciroa Thiele 1931

G. Euciroa Dall 1881

Subg. †Euciroa (Euciroa) Dall 1881

G. †Halicardia Dall 1895

G. †Halicardissa Dall 1913

G. Haliris Dall 1886

Subg. Haliris (Haliris) Dall 1886

†Haliris jamaicensis Dall 1903

†Verticordia (Haliris) mississippiensis Dall 1900