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Eotrivia procera
Taxonomy
Eotrivia procera was named by Fehse (2011). Its type specimen is Zoological State Collection, Munich No. 20070571, a shell, and it is a 3D body fossil. Its type locality is Mandrikovka, Dnipropetrovsk, which is in a Priabonian perireef or subreef sandstone/sandstone in the Mandrikovka Formation of Ukraine.
Synonymy list
| Year | Name and author |
|---|---|
| 2011 | Eotrivia procera Fehse p. 30 figs. 2.1, 23-2.5, 3.1, 3.2 |
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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.
†Eotrivia procera Fehse 2011
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. Fehse 2011 | Shell large sized, solid, inflated and ovate. Body whorl pyriform, inflated and rounded, about 80% of total height, with both terminals produced and separated from the dorsal elevation by a constriction. Terminal tips posteriorly blunt, anteriorly protruded. Dorsum elevated with highest point at posterior third. Mid-dorsal sulcus obscured. Ventrum convex with outer margin rounded. Aperture fairly narrow, widened towards fossular section, anteriorly straight, posteriorly curved. Labrum narrow, widest at mid-portion, ventrally convex. Inner labral margin rounded, curved, bears 19-24 fine denticles. Outer labral margin roundly callused, shouldered.Denticles continued as folds onto labrum, becoming finer and more close-set onto dorsum and ventrum, terminate onto parietal lip as fine denticles. Parietal lip slightly callused, bears 20- 25 denticles, anterior denticles coarser, more prominent. Siphonal and anal canals indented.Columellaslightly convex, relatively narrow and tapering steeply inwards. Inner adaxial carinalridge absent. Fossula less developed, short, indented just above inner fossular margin, not clearly delimited from the rest of the columella. Inner fossular margin callused, slightly protruded, roundly edged. Juvenile shell grid usually visible on columella.
Range of variation - Shell inflation varies considerably. Dorsal sulcus sometimes indistinct but mostly obsolete. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: Priabonian or 38.00000 to 33.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Priabonian | Ukraine | Eotrivia procera (type locality: 179763) |