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Rhinotreta laeta
Taxonomy
Viljandia laeta was named by Popov et al. (1982). Its type specimen is Br 1634, a valve (dorsal and ventral valves separated during preparation), and it is a 3D body fossil.
It was recombined as Rhinotreta laeta by Popov et al. (1994).
It was recombined as Rhinotreta laeta by Popov et al. (1994).
Synonymy list
| Year | Name and author |
|---|---|
| 1982 | Viljandia laeta Popov et al. p. 95 figs. pl. 1, figs 5-6 |
| 1994 | Rhinotreta laeta Popov et al. pp. 640-644 figs. Plate 4; Plate 5, figures 1-4; Text-figure 4 |
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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.
†Rhinotreta laeta Popov et al. 1982
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. Popov et al. 1994 | Shell subquadrate in outline; ventral valve about 80-90 per cent as high as long; ventral pseudointerarea catacline to apsacline, bisected by indistinct intertrough; internal pedicle tu be well developed. Dorsal valve ftattened with raised umbo; dorsal pseudointerarea narrow, occupying about half of valve width. |