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Permoperna
Taxonomy
Waagenoperna (Permoperna) was named by Nakazawa and Newell (1968).
It was reranked as Permoperna by Fang (1982), Fang (1987) and Fang et al. (2009).
It was assigned to Bakevelliidae by Fang (1982), Fang (1987) and Fang et al. (2009); and to Waagenoperna by Nakazawa and Newell (1968) and Ros-Franch et al. (2014).
It was reranked as Permoperna by Fang (1982), Fang (1987) and Fang et al. (2009).
It was assigned to Bakevelliidae by Fang (1982), Fang (1987) and Fang et al. (2009); and to Waagenoperna by Nakazawa and Newell (1968) and Ros-Franch et al. (2014).
Synonymy list
| Year | Name and author |
|---|---|
| 1968 | Waagenoperna (Permoperna) Nakazawa and Newell p. 61 |
| 1982 | Permoperna Fang |
| 1987 | Permoperna Fang p. 369 |
| 2009 | Permoperna Fang et al. |
| 2014 | Waagenoperna (Permoperna) Ros-Franch 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.
G. †Permoperna Nakazawa and Newell 1968
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†Permoperna trapezoidalis Kayser 1883
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Invalid names: Permoperna sinensis Frech 1911 [synonym], Waagenoperna (Permoperna) hayamii Nakazawa and Newell 1968 [synonym]
Diagnosis
No diagnoses are available