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Plaesiomyidae
Taxonomy
Plaesiomyidae was named by Schuchert (1913).
It was assigned to Orthida by Macomber (1970) and Mitchell (1977); to Orthacea by Howe (1988) and Potter (1990); and to Orthoidea by Williams et al. (2000), Popov et al. (2000), Zuykov et al. (2008) and Liljeroth et al. (2017).
It was assigned to Orthida by Macomber (1970) and Mitchell (1977); to Orthacea by Howe (1988) and Potter (1990); and to Orthoidea by Williams et al. (2000), Popov et al. (2000), Zuykov et al. (2008) and Liljeroth et al. (2017).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1913 | Plaesiomyidae Schuchert |
| 1970 | Plaesiomyidae Macomber |
| 1977 | Plaesiomyidae Mitchell |
| 1988 | Plaesiomyidae Howe p. 210 |
| 1990 | Plaesiomyidae Potter |
| 2000 | Plaesiomyidae Popov et al. |
| 2000 | Plaesiomyidae Williams et al. p. 747 |
| 2008 | Plaesiomyidae Zuykov et al. |
| 2017 | Plaesiomyidae Liljeroth et al. |
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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.
Fm. †Plaesiomyidae Schuchert 1913
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G. †Bokotorthis Popov et al. 2000
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†Bokotorthis abayi Klenina 1984
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Invalid names: Bokotorthis distincta Klenina 1984 [synonym], Bokotorthis nikitini Klenina 1984 [synonym], Bokotorthis tschingisensis Klenina 1984 [synonym]
†Bokotorthis kasachstanica Popov et al. 2000
†Bokotorthis kasakhstanica Rukavishnikova 1956
†Bokotorthis minuta Popov and Cocks 2014
†Bokotorthis plicadua Xu 1979
Subfm. †Plaesiomyinae Schuchert 1913
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G. †Austinella Foerste 1909
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†Austinella kankakensis McChesney 1861
†Austinella multicostella Alberstadt 1973
†Austinella sarybulakensis Popov et al. 2002
G. †Campylorthis Ulrich and Copper 1942
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†Campylorthis deflecta Conrad 1843
†Campylorthis discreta Reed 1952
G. †Chaulistomella Cooper 1956
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†Chaulistomella crassa Cooper 1956
†Chaulistomella rectangulata Cooper 1956
G. †Dinorthis Hall and Clarke 1892
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Subg. †Dinorthis (Pionorthis) Schuchert and Cooper 1932
Subg. †Dinorthis (Retrorsirostra) Schuchert and Cooper 1932
†Dinorthis atavoides Willard 1928
†Dinorthis beiguoshanensis Fu 1982
†Dinorthis berwynensis Whittington 1938
†Dinorthis berwynensis angusta Williams 1963
†Dinorthis carleyi Hall 1860
†Dinorthis carrickensis Reed 1917
†Dinorthis flabellulum Sowerby and Murchison 1839
†Dinorthis hadra Percival 1991
†Dinorthis holdeni Willard 1928
†Dinorthis holdenoides Laurie 1991
†Dinorthis interstriata Willard 1928
†Dinorthis meedsi Winchell and Schuchert 1892
†Dinorthis meedsi arctica Schuchert 1900
†Dinorthis occidentalis Okulitch 1943
†Dinorthis pectinella Emmons 1842
†Dinorthis subplicatella Reed 1917
†Dinorthis sweeneyi Winchell 1881
†Dinorthis taukensis Nikitin et al. 2003
†Dinorthis venusta Cooper 1956
†Orthis (Dinorthis) meedsi Winchell and Schuchert 1893
G. †Multicostella
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†Multicostella platys Billings 1859
†Multicostella plena Cooper 1956
†Multicostella rectangulata Cooper 1956
G. †Plaesiomys Hall and Clarke 1892
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†Dinorthis (Pionorthis) carletona Twenhofel 1928
†Dinorthis (Plaesiomys) saxbyana Oraspold 1959
†Dinorthis (Plaesiomys) solaris Buch 1849
Subg. †Plaesiomys (Plaesiomys) Hall and Clarke 1892
†Plaesiomys anticostiensis Shaler 1865
†Plaesiomys bellilamellosus Wang 1949
†Plaesiomys bellistriatus Wang 1949
†Plaesiomys carletona Twenhofel 1928
†Plaesiomys cutterensis Howe 1966
†Plaesiomys fidelis Popov et al. 2000
†Plaesiomys idahoensis Ross 1959
†Plaesiomys iphigenia Billings 1865
†Plaesiomys multiplicata Bancroft 1945
†Plaesiomys occidentalis Ladd 1929
†Plaesiomys porcata M'Coy 1846
†Plaesiomys porcata lata Mitchell 1977
†Plaesiomys proavita Winchell and Schuchert 1892
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Invalid names: Plaesiomys planus Wang 1949 [synonym]
†Plaesiomys rockymontana Wilson 1926
†Plaesiomys saxbiana Oraspold 1959
†Plaesiomys subcircularis Roy 1941
†Plaesiomys subquadratus Hall 1847
Invalid names: Pionorthis Schuchert and Cooper 1932 [replaced]
G. †Valcourea Raymond 1911
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†Valcourea angulata Phleger, Jr. 1933
†Valcourea confinis Salter 1849
†Valcourea plana Cooper 1956
†Valcourea semicarinata Cooper 1956
†Valcourea strophomenoides Raymond 1905
†Valcourea transversa Cooper 1956
Diagnosis
No diagnoses are available