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Simnia texana

Gastropoda - Ovulidae

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).

Synonymy list
YearName and author
1899Ovula (Simnia) texana Johnson p. 79
1937Neosimnia texana Palmer p. 239 figs. Plate 31, fig. 16
1941Transovula texana Schilder p. 106
1965Simnia texana Palmer and Brann
1996Neosimnia texana Garvie p. 56

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
classGastropodaCuvier 1797
RankNameAuthor
superorderHypsogastropoda(Ponder and Lindberg 1997)
infraorderLittorinimorphaGolikov and Starobogtov 1975
superfamilyCypraeoidea(Rafinesque 1815)
familyOvulidaeFleming 1822
subfamilyOvulinaeFlemming 1822
genusSimniaRisso 1826
speciestexana(Johnson 1899)

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.

Diagnosis
ReferenceDiagnosis
K. V. Palmer 1937Shell 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.