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Anematina proutana
Taxonomy
Holopea proutana was named by Hall (1856). It is a 3D body fossil. Its type locality is Spergen Hill, near railroad station at Harristown, southeast of Salem, which is in a Meramecian carbonate limestone in the Salem Formation of Indiana.
It was recombined as Holopea (Callonema) proutana by Whitfield (1882); it was recombined as Strophostylus (Anematina) proutana by Knight (1933); it was recombined as Anematina proutana by Knight (1941), Blodgett and Johnson (1992) and Wagner (2023).
It was recombined as Holopea (Callonema) proutana by Whitfield (1882); it was recombined as Strophostylus (Anematina) proutana by Knight (1933); it was recombined as Anematina proutana by Knight (1941), Blodgett and Johnson (1992) and Wagner (2023).
Synonymy list
| Year | Name and author |
|---|---|
| 1856 | Holopea proutana Hall |
| 1882 | Holopea (Callonema) proutana Whitfield p. 72 figs. pl. 8 f. 33-34 |
| 1906 | Holopea proutana Cumings p. 1342 figs. pl. 25 f. 33-34 |
| 1915 | Holopea proutana Girty p. 190 |
| 1929 | Holopea proutana Bell p. 177 figs. pl. 31 f. 7, 7a-8 |
| 1933 | Strophostylus (Anematina) proutana Knight p. 36 figs. pl. 8 f. 2 |
| 1941 | Anematina proutana Knight pp. 32 - 33 figs. Plate 52, figures 4a-b |
| 1992 | Anematina proutana Blodgett and Johnson p. 121 |
| 2023 | Anematina proutana Wagner p. 3839 |
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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.
†Anematina proutana Hall 1856
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. B. Knight 1941 | Small, subtrochiform, minutely phaneromphalous gastropods with gently oblique outer lip; whorl profile moderately arched between sutures; sutures only moderately deep; nucleus simple, dextral, not set off from the succeeding whorls; base somewhat flatly rounded, minutely phaneromphalous; columellar lip gently arcuate, thin, its upper part slightly reflexed about the minute umbilicus; parietal inductura thin; outer lip thin, gently oblique backwards from the upper suture, very slightly convex forward; ornamentation very faint lines of growth only; shell thin, its structure unknown; color pattern two revolving dark bands. The holotype measures about 10 mm. in height, 6 mm. in width, and has a pleural angle of about 45 degrees. |