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Piretella
Taxonomy
Piretella is a genus. It is not extant. It is the type genus of Piretellinae.
It was assigned to Piretellinae by Jaanusson (1957); to Piretellidae by Benson et al. (1961); and to Palaeocopida by Sepkoski (2002).
It was assigned to Piretellinae by Jaanusson (1957); to Piretellidae by Benson et al. (1961); and to Palaeocopida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1957 | Piretella Jaanusson pp. 279 - 280 |
| 1961 | Piretella Benson et al. p. Q146 |
| 2002 | Piretella 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. †Piretella
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| V. Jaanusson 1957 | Unisulcate, with a !arge, röunded preadductorial knob. Sulcus and knob surrounded by a crest and the dorsal pli ca. Velar structure moderate! y wide, anteriorly and anteroventrally developed as a frill, and in most species as a row of stout spines posteroventrally. In one species the frill seems to extend from one cardinal corner to the other. Heteromorphs with a strongly convex dolon. |