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Cornulina (Afrocornulina)

Gastropoda - Neogastropoda - Melongenidae

Taxonomy
Cornulina (Afrocornulina) was named by Adegoke (1977) [Sepkoski's age data: T Than Sepkoski's reference number: ZR77].

It was reranked as Afrocornulina by Sepkoski (2002).

It was assigned to Cornulina by Adegoke (1977); and to Neotaenioglossa by Sepkoski (2002).

Synonymy list
YearName and author
1977Cornulina (Afrocornulina) Adegoke pp. 174 - 175
2002Afrocornulina Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
classGastropodaCuvier 1797
RankNameAuthor
subclassProsobranchiaMilne-Edwards 1848
superorderCaenogastropodaCox 1959
orderNeogastropodaThiele 1929
superfamilyBuccinoidea(Rafinesque 1815)
familyMelongenidaeGill 1867
genusCornulinaConrad 1853
subgenusAfrocornulinaAdegoke 1977

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
ReferenceDiagnosis
O. S. Adegoke 1977Medium-sized, Cornulina-like shell, with short, acute spire, ornamented by short spines which are wel1 developed near the adapical and abapical ends of whorls and suppressed in between. Body whorl long, ornamented by a crown of nodes located a considerable distance below suture. Spine bases prolonged as broad ridges on the body whorl. Columella heavy and cylindrical, sharply bent abaperturally below body whorl and its tip is twisted and recurved toward the outer lip. Siphonal fasciole well developed, canal narrow and crescentic. Columella and part of parietal surface covered by callus.

Sculpture consists of a series of narrow, wavy spiral ribs separated by wide interspaces. Ribs few and faint on adapical portion of body whorl above the row of nodes.