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Afrollonia
Taxonomy
Afrollonia was named by Adegoke (1977) [Sepkoski's age data: T Than Sepkoski's reference number: 705]. Its type is Afrollonia nigeriensis.
It was assigned to Colloniinae by Adegoke (1977); to Margaritinae by Kase (1984); to Archaeogastropoda by Sepkoski (2002); and to Gastropoda by Kiessling (2003).
It was assigned to Colloniinae by Adegoke (1977); to Margaritinae by Kase (1984); to Archaeogastropoda by Sepkoski (2002); and to Gastropoda by Kiessling (2003).
Species
Species lacking formal opinion data
Synonymy list
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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. †Afrollonia Adegoke 1977
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†Afrollonia angustiumbilicata Adegoke 1977
†Afrollonia nigeriensis Adegoke 1977
†Afrollonia togoensis Adegoke 1977
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| O. S. Adegoke 1977 | Shell small, with moderately high spire and a small, smooth bulbous protoconch. Spiral whorls inflated and gently convex; body whorl rounded and relatively large. Whorls ornamented by fine revolving spirals a few of which occasionally become prominently elevated. Umbilicus moderately wide and deep, with a semilunar exterior outline and a turbinate, funnel-like outer chamber leading into a cylindrical inner passage separated from the former by a spiral ridge. Umbilical rim coarsely noded. |