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Picnotreta
Taxonomy
Picnotreta was named by Henderson and MacKinnon (1981) [Sepkoski's age data: Cm m Cm u Sepkoski's reference number: 538]. It is not extant.
It was assigned to Acrotretidae by Williams et al. (2000); and to Acrotretida by Sepkoski (2002).
It was assigned to Acrotretidae by Williams et al. (2000); and to Acrotretida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1981 | Picnotreta Henderson and MacKinnon |
| 2000 | Picnotreta Williams et al. p. 118 |
| 2002 | Picnotreta Sepkoski |
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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. †Picnotreta Henderson and MacKinnon 1981
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†Picnotreta debilis Henderson and MacKinnon 1981
†Picnotreta karakichiensis Holmer et al. 2001
†Picnotreta robusta Holmer et al. 1999
Diagnosis
No diagnoses are available