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Ptychometopus
Taxonomy
Ptychometopus was named by Schmidt (1894) [Sepkoski's age data: O l]. It is not extant.
It was assigned to Phacopida by Sepkoski (2002); and to Pharostomatidae by Jell and Adrain (2002).
It was assigned to Phacopida by Sepkoski (2002); and to Pharostomatidae by Jell and Adrain (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1894 | Ptychometopus Schmidt |
| 2002 | Ptychometopus Jell and Adrain p. 436 |
| 2002 | Ptychometopus 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. †Ptychometopus Schmidt 1894
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Diagnosis
No diagnoses are available