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Cyrtonotella
Taxonomy
Cyrtonotella was named by Schuchert and Cooper (1931). Its type is Cyrtonotella pakriensis.
It was assigned to Orthidae by Alikhova (1953); to Orthinae by Rubel (1961) and Mitchell (1977); to Nanorthidae by Williams et al. (2000); to Orthida by Sepkoski (2002); and to Archaeorthidae by Williams et al. (2007).
It was assigned to Orthidae by Alikhova (1953); to Orthinae by Rubel (1961) and Mitchell (1977); to Nanorthidae by Williams et al. (2000); to Orthida by Sepkoski (2002); and to Archaeorthidae by Williams et al. (2007).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1931 | Cyrtonotella Schuchert and Cooper |
| 1953 | Cyrtonotella Alikhova |
| 1961 | Cyrtonotella Rubel |
| 1977 | Cyrtonotella Mitchell |
| 2000 | Cyrtonotella Williams et al. p. 744 |
| 2002 | Cyrtonotella Sepkoski |
| 2007 | Cyrtonotella Williams et al. p. 2687 |
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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.
G. †Cyrtonotella Schuchert and Cooper 1931
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†Cyrtonotella grandistriata Cooper 1956
†Cyrtonotella kuckersiana Wysogorski 1900
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†Cyrtonotella kuckersiana kuckersiana Alikhova 1953
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Invalid names: Orthis laine Opik 1930 [synonym]
†Cyrtonotella kuckersiana frechi Wysogorski 1900
†Cyrtonotella nicholsoni Reed 1917
†Cyrtonotella semicircularis Eichwald 1829
†Cyrtonotella subfissicosta Reed 1917
†Cyrtonotella virginiensis Butts 1942
Diagnosis
No diagnoses are available