Stromboidea

• Rostellariidae
  • Calyptraphorus
    • Calyptraphorus africana Cox, 1952

Calyptraphorus africanus Cox, 1952, holotype; Campanian, Upper Cretaceous; near Nauli, North of Bonyere, western Ghana (Gold Coast); Coll. BM(NH) G 69568

Calyptraphorus africanus Cox, 1952, paratype; Campanian, Upper Cretaceous; near Nauli, North of Bonyere, western Ghana (Gold Coast); Coll. BM(NH) G 72008

Calyptraphorus africanus Cox, 1952, paratype; Campanian, Upper Cretaceous; near Nauli, North of Bonyere, western Ghana (Gold Coast); Coll. BM(NH) G 72007

Calyptraphorus africanus Cox, 1952, paratype; Campanian, Upper Cretaceous; near Nauli, North of Bonyere, western Ghana (Gold Coast); Coll. BM(NH) G 72006

History and Synonymy

2006

Atta-Peters & Salami, 2006, p. 380:

• "Cox (1952) used fossil lamellibrachs and gastropods to date the Nauli limestone as Campanian. Khan (1970) and recent reports from some borehole data by oil companies indicate a Maastrichtian age for this unit."

2009

Kollmann, 2009 comments:

• "C. africana Cox, 1952, from Campanian deposits of Ghana needs closer examination because of its oblique columella."

References

• Atta-Peters & Salami, 2006. Aptian-Maastrichtian palnomorphs from the offshore Tano-Basin, western Ghana; Journal of African Earth Science 46: 379-394.
• Cox, L. R. (1952): Cretaceous and Eocene fossils from the Gold Coast. – Gold Coast Geological Survey, Bulletin 17: 1-66.
• Khan, M.S., 1970. Cretaceous and Tertiary rocks of Ghana with a historical account of oil exploration. Ghana Geologial Survey Bulletin 40, 43.
• Kollmann, 2009