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Cypraeerato yolandae
Taxonomy
Cypraeerato yolandae was named by Fehse and Grego (2012) [= Erato (Eratopsis) subcypraeola (d’Orbigny, 1852) Baluk 1995, pl. 13, fig. 3.]. Its type specimen is UW BkK-G449, a shell, and it is a 3D body fossil. Its type locality is Korytnica Forest, which is in a Badenian reef, buildup or bioherm claystone/limestone in the Korytnica Clays Formation of Poland.
Synonymy list
| Year | Name and author |
|---|---|
| 2012 | Cypraeerato yolandae Fehse and Grego pp. 17 - 18 figs. Plate 1, fig. 3; Plate 2, 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.
†Cypraeerato yolandae Fehse and Grego 2012
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. Fehse and J. Grego 2012 | Shell medium sized, relatively fragile, pearshaped, with an obsolete spire. Protoconch and subsequent whorls completely covered by callus, suture not visible. Junction with teleoconch indistinct. Body whorl almost 90% of total 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. Posterior part of the shell usually covered with minute to large pustules, concentrated mostly around the spire. Dorsum rounded with an obsolete dorsal sulcus represented by at least a dimple behind the anterior extremity in fully adult specimens. The whole shell surface is covered by a thick, glossy callus. Aperture comprises about 95% of total shell height, slightly curved and narrow. Labrum defines the shell length, thickened, smooth, rounded and sloping slightly into the aperture, rounded at outer margin, bearing 17 to 20 teeth, which extend onto the labrum to a variable distance. Siphonal canal short, rounded and straight. Anal canal simple, slightly indented. Columella curved, with a weakly developed inner carinal ridge and an anteriorly thickened parietal lip. Columellar denticles posteriorly obsolete or absent. Anterior 2-4 denticles are developed into folds with incised interstices. Basal folds run obliquely across the base. Fossula obsolete, not delimited from the columella. Terminal ridge simple.
Range of variation – The labrum is sometimes flattened and the labral folds are close-set and less developed. The shell is more or less pustulated. The spire is very slightly elevated in some specimens. The length of the shell varies between 4.4 and 7.1 mm. |