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Bivetiella dilatata
Taxonomy
Bivetiella dilatata was named by Landau et al. (2012). Its type specimen is NMB H 19955, a shell, and it is a 3D body fossil. Its type locality is NMB 18510 - Rio Tuquesa [Tuira Fm], which is in a Tortonian coastal horizon in the Tuira Formation of Panama.
Synonymy list
| Year | Name and author |
|---|---|
| 2012 | Bivetiella dilatata Landau et al. p. 915 figs. figs. 4.15-4.20 |
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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.
†Bivetiella dilatata Landau et al. 2012
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B. Landau et al. 2012 | A squat, medium-sized Bivetiella species, with a multispiral protoconch, teleoconch relatively depressed, non tabulate spire, sculpture in which the axial and spiral elements are of equal strength, last whorl extremely globose, outer lip bordered by a narrow but elevated. |