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Ptychoglyptinae
Taxonomy
Ptychoglyptinae was named by Cooper (1956).
It was assigned to Sowerbyellidae by Williams et al. (2000), Cocks (2005) and Cocks (2010).
It was assigned to Sowerbyellidae by Williams et al. (2000), Cocks (2005) and Cocks (2010).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1956 | Ptychoglyptinae Cooper |
| 2000 | Ptychoglyptinae Williams et al. p. 347 |
| 2005 | Ptychoglyptinae Cocks p. 277 |
| 2010 | Ptychoglyptinae Cocks |
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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.
Subfm. †Ptychoglyptinae Cooper 1956
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G. †Ptychoglyptus Willard 1928
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†Ptychoglyptus alaensis Rasmussen et al. 2012
†Ptychoglyptus bellarugosus Schuchert and Cooper 1930
†Ptychoglyptus ingenuus Cocks 2005
†Ptychoglyptus irregularis Reed 1940
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Invalid names: Ptychoglyptus valdari Spjeldnaes 1957 [synonym]
†Ptychoglyptus pauciradiatus Reed 1932
†Ptychoglyptus virginensis Willard 1928
†Ptychoglyptus virginiensis Willard 1928
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Invalid names: Ptychoglyptus pulchrus Butts 1926 [synonym]
Diagnosis
No diagnoses are available