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Simnia texana
Taxonomy
Ovula (Simnia) texana was named by Johnson (1899). Its type specimen is ANSP 9208, a shell, and it is a 3D body fossil.
It was recombined as Transovula texana by Schilder (1941); it was recombined as Simnia texana by Palmer and Brann (1965); it was recombined as Neosimnia texana by Palmer (1937) and Garvie (1996).
It was recombined as Transovula texana by Schilder (1941); it was recombined as Simnia texana by Palmer and Brann (1965); it was recombined as Neosimnia texana by Palmer (1937) and Garvie (1996).
Synonymy list
| Year | Name and author |
|---|---|
| 1899 | Ovula (Simnia) texana Johnson p. 79 |
| 1937 | Neosimnia texana Palmer p. 239 figs. Plate 31, fig. 16 |
| 1941 | Transovula texana Schilder p. 106 |
| 1965 | Simnia texana Palmer and Brann |
| 1996 | Neosimnia texana Garvie p. 56 |
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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.
†Simnia texana Johnson 1899
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| K. V. Palmer 1937 | Shell narrow, attenuate (anterior part of the shell wanting) resembling in form the recent O. acicularis Lam. of the West Indies; dorsal surface of the attenuated portion of the posterior, with fine revolving lines, the remainder of the shell smooth ; outer lip thickened, showing a few crenulations toward the anterior, inner lip smooth with a raised callus at the posterior, on which are three or four transverse grooves. Length 11 mm. (its original length was probably about 14 mm.), greatest diam. 4 mm. |