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Cerithium (Nigerithium)
Gastropoda - Sorbeoconcha - Cerithiidae
Taxonomy
Cerithium (Nigerithium) was named by Adegoke (1977) [Sepkoski's age data: T Than Sepkoski's reference number: ZR77].
It was reranked as Nigerithium by Sepkoski (2002).
It was assigned to Cerithium by Adegoke (1977); and to Neotaenioglossa by Sepkoski (2002).
It was reranked as Nigerithium by Sepkoski (2002).
It was assigned to Cerithium by Adegoke (1977); and to Neotaenioglossa by Sepkoski (2002).
Species lacking formal opinion data
Cerithium abbassi, Cerithium abictiforme, Cerithium alternatum, Cerithium angyostoma, Cerithium armoricense, Cerithium austriacum, Cerithium binodulasum, Cerithium boulei, Cerithium bronni, Cerithium calcivelatum, Cerithium caloosaensis, Cerithium coorayi, Cerithium cyprinum, Cerithium dubium, Cerithium georgianum, Cerithium gilyandense, Cerithium gonzagae, Cerithium guinacium, Cerithium heeri, Cerithium hernandoensis, Cerithium isidis, Cerithium kavasiense, Cerithium kobunense, Cerithium koroniense, Cerithium krauskopfi, Cerithium lallierianum, Cerithium leei, Cerithium libycum, Cerithium manzourensis, Cerithium mazureki, Cerithium mogharens, Cerithium negritosense, Cerithium obsoletum, Cerithium pachecoi, Cerithium percostatum, Cerithium periphractum, Cerithium pirabicum, Cerithium praecursor, Cerithium roedereri, Cerithium septemplicatum, Cerithium struckmanii, Cerithium vertagus
Synonymy list
| Year | Name and author |
|---|---|
| 1977 | Cerithium (Nigerithium) Adegoke pp. 77 - 78 |
| 2002 | Nigerithium Sepkoski, Jr. |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| O. S. Adegoke 1977 | Medium-sized cerithiid, with high, gently tapering spire of several whorls. Spire whorls low, whorl width more than twice height, sides gently convex. Body whorl higher than wide.
Shell bears a series of prominent unevenly spaced axial ridges not continuous from whorl to whorl, 11 ridges present on body whorl, 10 on penultimate whorl. Spiral sculpture faint and supressed. Columella short, cylindrical and folded; labral edge sinuous. Growth line doubly flexed with broadly curved and shallow anterior and posterior sinuses. |