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Erato planulosa
Taxonomy
Erato (Eratopsis) barrandei planulosa was named by Sacco (1894) [Lectotype (Pl. 1, fig. 9, Pl. 10, fig. 1) designated By Fehse & Grego 20120]. Its type specimen is BS 044.16.001, a shell, and it is a 3D body fossil.
It was recombined as Eratopsis barrandei planulosa by Ferrero Mortara (1984); it was recombined as Erato planulosa by Fehse and Grego (2012).
It was recombined as Eratopsis barrandei planulosa by Ferrero Mortara (1984); it was recombined as Erato planulosa by Fehse and Grego (2012).
Synonymy list
| Year | Name and author |
|---|---|
| 1894 | Erato (Eratopsis) barrandei planulosa Sacco p. 62 figs. pl. 3, fig. 70a, b |
| 1984 | Eratopsis barrandei planulosa Ferrero Mortara pp. 157, 329 figs. pl. 28, fig. 3a-c |
| 2012 | Erato planulosa Fehse and Grego p. 1 figs. Plate 1, fig. 9; Plate 10, figs 1-3 |
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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.
†Erato planulosa Sacco 1894
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. Fehse and J. Grego 2012 | Shell medium sized, elongated pear-shaped, with an elevated, somewhat pointed spire. Protoconch covered by callus, not visible in the available specimen. Suture indistinct, number of whorls of protoconch and teleoconch not observable. Spire covered by very thick callus, which covers the suture. Body whorl almost 85% of total shell height, shouldered adapically, with the maximum diameter at # of the distance from the adapical suture, evenly tapering below and only slightly constricted at the ventrum. Dorsum usually covered with minute to large pustules. Dorsum rounded. Dorsal sulcus incised but represented by at least a dimple behind the anterior extremity in fully adult specimens. Aperture comprises c. 80% of total height, slightly sinuous and narrow. Labrum broad, thickened, smooth, somewhat rounded, anteriorly declivous and sloping slightly into the aperture, rounded at the outer margin, bearing 18 to 22 fine, irregular teeth, which extend onto the labrum for a variable distance. Siphonal canal short, indented, rounded and straight. Columella almost straight, with a weakly developed inner carinal ridge and a slightly thickened parietal lip. Columellar denticles varies from 15 to 17 in number. Anterior 2-4 denticles are developed into fine folds, which run obliquely across the ventrum, the remaining ones weakly developed or obsolete. Fossula not delimited from the columella. Terminal ridge biplicated. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||