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Plectrella
Taxonomy
Plectrella was named by Ludvigsen and Westrop (1989) [Sepkoski's age data: Cm u Sepkoski's reference number: ZR90]. It is not extant.
It was assigned to Ptychopariida by Sepkoski (2002); and to Ptychaspididae by Jell and Adrain (2002).
It was assigned to Ptychopariida by Sepkoski (2002); and to Ptychaspididae by Jell and Adrain (2002).
Synonymy list
Year | Name and author |
---|---|
1989 | Plectrella Ludvigsen and Westrop |
2002 | Plectrella Jell and Adrain p. 427 |
2002 | Plectrella 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. †Plectrella Ludvigsen and Westrop 1989
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Diagnosis
No diagnoses are available