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Rugalindrites
Taxonomy
Rugalindrites was named by Gründel and Nützel (2012). Its type is Acteon cuspidatus.
It was assigned to Cylindrobullinidae by Gründel and Nützel (2012).
It was assigned to Cylindrobullinidae by Gründel and Nützel (2012).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1758 | Cylindrites Gesner |
| 2002 | Cylindrites Sepkoski |
| 2012 | Rugalindrites Gründel and Nützel p. 35 |
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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.
G. †Rugalindrites Gründel and Nützel 2012
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†Rugalindrites acutus Sowerby 1824
†Rugalindrites aequalis Terquem and Jourdy 1871
†Rugalindrites altus Morris and Lycett 1851
†Rugalindrites conopsis Cossmann 1885
†Rugalindrites cuspidatus Sowerby 1824
†Rugalindrites gradatus Cossmann 1885
†Rugalindrites kobyi Loriol and Koby 1895
Invalid names: Cylindrites Gesner 1758 [replaced]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Gründel and A. Nützel 2012 | The shell is cylindrical and has a high last whorl and a low spire. The shell has a subsutural ramp. The transition from the ramp to the outer whorl face is rounded or sharply angular. The flanks are straight to slightly convex. There is no bordering spiral furrow. The shell is smooth. The growth lines are weakly prosocyrt between the abaxial edge of the ramp and the centre of the base. The aperture is very high and narrow with straight outer lip in its adapical portion. Its anterior part is broader and rounded. The columellar inner lip is broadened and bent backward (it covers the central part of the base) and bears one or two folds. The protoconch is unknown. |