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Taxonomy
Protacanthina was named by Gandl (1972) [Sepkoski's age data: D Gedi-u D Emsi-l Sepkoski's reference number: 421,983,1106]. It is not extant.
It was assigned to Acastidae by Jell and Adrain (2002); and to Phacopida by Sepkoski (2002).
It was assigned to Acastidae by Jell and Adrain (2002); and to Phacopida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1972 | Protacanthina Gandl |
| 2002 | Protacanthina Jell and Adrain p. 431 |
| 2002 | Protacanthina 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. †Protacanthina Gandl 1972
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Diagnosis
No diagnoses are available