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Cleotrivia esteponica
Taxonomy
Cleotrivia esteponica was named by Fehse and Landau (2002). Its type specimen is HNC 57306, a shell, and it is a 3D body fossil. Its type locality is 5.5-9 km northeast of Estepona, which is in a Zanclean marine conglomerate in the Velerin Conglomerates Formation of Spain.
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Cleotrivia esteponica Fehse and Landau pp. 104 - 105 figs. 3/3a-c, 4a-c, 5a-c; 4/la-d, 3a-d |
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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.
†Cleotrivia esteponica Fehse and Landau 2002
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. Fehse and B. Landau 2002 | Shell very small, relatively fragile, and spherical. Spire covered by callus, faintly visible beneath 3 vertical riblets extending upwards from the posterior terminal. Body whorl globose and rounded, about 90% of total height, with the terminals strongly produced and flattened. Dorsum evenly rounded, without a true dorsal sulcus, but a weak dorsal depression, which modifies the ribs. Dorsum completely covered by 20-22 strong, irregular ribs, with interruptions. Where the ribs cross the dorsal depression, they are usually modified; interrupted, narrowed and occasionally unaltered. Base and terminals are evenly convex. Aperture curved, slightly wider in the anterior portion. Outer lip broad, widest in mid-portion, becoming narrower towards the terminals. The lip is evenly rounded and the outer margin weakly callused. The lip bears 15-18 fine, equal teeth. Siphonal and anal canals wide and indented. Columella convex, tapering steeply inwards, bordered internally by a very weak to subobsolete carinal ridge, bearing 13-15 ribs, which continue onto the carinal ridge, where they do not become significantly stronger. The carinal ridge protrudes in the fossular region. Fossula concave, not clearly delimited from the rest of the columella. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range: base of the Zanclean to the top of the Piacenzian or 5.33300 to 2.58800 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Zanclean | Spain | Cleotrivia esteponica (type locality: 178254) | |
| Piacenzian | Spain | Cleotrivia esteponica (80558 80561 80562) |