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Circotheca smetanai
Discussion
1975 Circothecid. Marek, p. 66.
1976 Circotheca sp. nov. Marek, fig. 5B.
1983a Circotheca smetanai sp. n.Marek,pp.1012(MS).
Taxonomy
Circotheca smetanai was named by Valent et al. (2012). Its type specimen is L40465 (operculum) and is a 3D body fossil.
Synonymy list
| Year | Name and author |
|---|---|
| 2012 | Circotheca smetanai Valent et al. pp. 242 - 244 figs. 2A–D, G, K, 3 |
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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.
†Circotheca smetanai Valent et al. 2012
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. Valent et al. 2012 | Circotheca with sub-circular operculum, summit of operculum displaced slightly dorsally. External surface of operculum with well developed concentric irregularly disposed growth-lines. Outer surface of conch bears very narrow, corrugate ribs which are T-shaped in cross-section. |
Measurements
No measurements are available
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| Source: g = genus, p = phylum | |||||
| References: d'Eichwald 1840, Hendy et al. 2009 | |||||
Collections
No collection or age range data are available