Also known as Cutting #10
Where: Nigeria (5.0° N, 7.5° E: paleocoordinates 0.7° S, 1.4° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Ameki Formation (Bende-Ameki Group), Lutetian (47.8 - 41.3 Ma)
• Cutting #10. No stratigraphic value can be assigned to cutting numbering. Collections presumably originate from the Ameki Fm (not stated in text, but highly likely based on age and geography). Newton states an upper Lutetian age. This has not be confirmed against publications of Arua and other Ameke Fm collections DO NOT state an age finer than "Eocene". This needs to be rectified as these will be orphaned in current binning scheme. Uhen's Ameki Fm collections state "Middle Eocene", which while encompassing the Lutetian will also be orphaned.
• bed-level stratigraphic resolution
Environment/lithology: estuary or bay; poorly lithified, concretionary, carbonaceous shale and concretionary, carbonaceous claystone
Size class: macrofossils
Collection methods: Collected by Sir Frederick Lugard, Sir J. Eaglesome, A. Kitson, W. Bell over several occasions, but with consistency in original of collections.
Primary reference: R. B. Newton. 1922. Eocene Mollusca from Nigeria. Geological Survey of Nigeria Bulletin 3 [A. Miller/A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 51241: authorized by Austin Hendy, entered by Austin Hendy on 01.06.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Glycymeris nigeriensis Newton 1922 clam | |
"Anadara nigeriensis" = Protonoetia nigeriensis Newton 1922 clam
Striarca africana Newton 1922 clam
Fossularca africana Newton 1922 ark | |
Pinna sp. Linnaeus 1758 oyster | |
Ostrea cf. marginidentata Wood 1861 oyster | |
"Cardium cf. obliquum" = Loxocardium obliquum
"Cardium cf. obliquum" = Loxocardium obliquum Lamarck 1805 cockle | |
Peronaea nigeriensis Newton 1922 tellin clam | |
Cordiopsis incrassata Nyst 1836 venus clam
Callista elongatotrigona Newton 1922 venus clam
Callista kitsoni Newton 1922 venus clam | |
"Mactra semisulcata" = Spisula semisulcata
"Mactra semisulcata" = Spisula semisulcata Lamarck 1805 clam | |
Raetomya schweinfurthi Mayer-Eymar 1887 clam | |
Phacoides eaglesomei Newton 1922 clam | |
"Cardita cf. planicosta" = Venericor planicosta, Cardita costaenodulosis
"Cardita cf. planicosta" = Venericor planicosta Lamarck 1801 clam
Cardita costaenodulosis Newton 1922 clam | |
Gastropoda | |
Stellaxis bicingulata Newton 1922 sundial
Solariaxis cf. canaliculata Lamarck 1804 sundial | |
"Turritella cf. sulcifera" = Ispharina sulcifera, Turritella mauryana
"Turritella cf. sulcifera" = Ispharina sulcifera Deshayes 1832 turret shell
Turritella mauryana Newton 1922 turret shell | |
Terebralia sp. Swainson 1840 horn snail | |
Sinum africanum Newton 1922 moon snail
Sinum cf. clathratum Gmelin 1790 moon snail | |
Tugurium nigeriense Newton 1922 carrier shell | |
"Amphiperas nigeriensis" = Eovolva nigeriensis
"Amphiperas nigeriensis" = Eovolva nigeriensis Newton 1922 snail | |
Surcula africana Newton 1922 snail | |
Eopleurotoma nigeriensis Newton 1922 turrid | |
Conospirus cf. parisiensis Deshayes 1835 cone shell | |
Poirieria cf. calcitrapa Lamarck 1803 murex snail | |
Volutospina conicoturrita Newton 1922 volute
Volutospina multispinosa Newton 1922 volute
Athleta lugardi Newton 1922 volute | |
Bonellitia cf. evulsa Solander 1766 snail | |
Cominella douvillei Newton 1922 true whelk
Janiopsis nigeriensis Newton 1922 true whelk
Strepsidura spirata Newton 1922 true whelk
Hilda turriculata Newton 1922 true whelk | |
"Rhopalithes africanus" = Africolithes africanus, Bulbifusus nigeriensis
"Rhopalithes africanus" = Africolithes africanus Newton 1922 snail
Bulbifusus nigeriensis Newton 1922 snail | |
Buccinorbis kitsoni Newton 1922 snail | |
"Semiterebellum suturocostatum" = Amekichilus suturocostatum, "Semiterebellum elongatum" = Africoterebellum elongatum, "Rostellaria unidigitata" = Cyrtulotibia unidigitata
"Semiterebellum suturocostatum" = Amekichilus suturocostatum Newton 1922 snail
"Semiterebellum elongatum" = Africoterebellum elongatum Newton 1922 snail
"Rostellaria unidigitata" = Cyrtulotibia unidigitata Newton 1922 snail | |
Rostellaria bidigitata Newton 1922 true conch | |
Crepidula falconeri Newton 1922 slipper shell | |
Trivelina sphenarium | |
Trivelina cf. sphenarium Bayan 1873 |