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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Pegmatreta rara
Taxonomy
Pegmatreta rara was named by Cooper et al. (1952). Its type specimen is U.S.N.M. No.116057d, a valve, and it is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1952 | Pegmatreta rara Cooper et al. pp. 42-43 figs. 10-19 |
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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.
†Pegmatreta rara Cooper et al. 1952
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. A. Cooper et al. 1952 | This species differs from P. arellanoi in its much rounder outline, longer pseudointerarea, less convex profile, more greatly developed subapical callosity in the pedicle valve, and a less elevated medium septum in the brachial valve. |
Measurements
No measurements are available
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| Source: g = genus, o = order, c = class, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004, Hendy et al. 2009 | |||||
Collections
No collection or age range data are available