Also known as Cutting #6
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 #6. 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 51240: authorized by Austin Hendy, entered by Austin Hendy on 01.06.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Fossularca africana Newton 1922 ark
"Anadara nigeriensis" = Protonoetia nigeriensis Newton 1922 clam
Striarca africana Newton 1922 clam | |
Glycymeris nigeriensis Newton 1922 clam | |
Ostrea cf. marginidentata Wood 1861 oyster | |
Cardita costaenodulosis Newton 1922 clam
Cardita triparticostata Newton 1922 clam
Cardita cf. costaeirregularis Newton 1922 clam | |
"Corbula rugosa" = Notocorbula rugosa
"Corbula rugosa" = Notocorbula rugosa Lamarck 1806 clam | |
Raetomya schweinfurthi Mayer-Eymar 1887 clam | |
Peronaea nigeriensis Newton 1922 tellin clam | |
"Cardium cf. obliquum" = Loxocardium obliquum
"Cardium cf. obliquum" = Loxocardium obliquum Lamarck 1805 cockle | |
Cordiopsis incrassata Nyst 1836 venus clam
Callista kitsoni Newton 1922 venus clam
Callista elongatotrigona Newton 1922 venus clam | |
"Mactra semisulcata" = Spisula semisulcata
"Mactra semisulcata" = Spisula semisulcata Lamarck 1805 clam | |
Phacoides subrhomboidalis Newton 1922 clam
Phacoides eaglesomei Newton 1922 clam
Divaricella oppenheimi Newton 1922 clam | |
Gastropoda | |
Neverita cf. calvimontana Deshayes 1864 moon snail
Sinum cf. clathratum Gmelin 1790 moon snail
Sinum africanum Newton 1922 moon snail | |
Surcula ingens Mayer-Eymar 1895 snail
Surcula africana Newton 1922 snail | |
Conospirus cf. parisiensis Deshayes 1835 cone shell | |
Buccinorbis kitsoni Newton 1922 snail | |
Volutospina conicoturrita Newton 1922 volute
Volutospina multispinosa Newton 1922 volute
Athleta lugardi Newton 1922 volute | |
Poirieria cf. calcitrapa Lamarck 1803 murex snail | |
Bulbifusus nigeriensis, "Rhopalithes africanus" = Africolithes africanus
Bulbifusus nigeriensis Newton 1922 snail
"Rhopalithes africanus" = Africolithes africanus Newton 1922 snail | |
Cornulina minax Solander 1766 snail | |
Cominella douvillei, Janiopsis nigeriensis, Strepsidura spirata, Hilda turriculata, Liomesus africanus
Cominella douvillei Newton 1922 true whelk
Janiopsis nigeriensis Newton 1922 true whelk
Strepsidura spirata Newton 1922 true whelk
Hilda turriculata Newton 1922 true whelk
Liomesus africanus Newton 1922 true whelk | |
Trigonostoma decorara Newton 1922 snail
Bonellitia cf. evulsa Solander 1766 snail | |
Tugurium nigeriense Newton 1922 carrier shell | |
Cypraea cf. bowerbanki Sowerby 1850 snail | |
"Amphiperas nigeriensis" = Eovolva nigeriensis
"Amphiperas nigeriensis" = Eovolva nigeriensis Newton 1922 snail | |
"Semiterebellum elongatum" = Africoterebellum elongatum, "Rostellaria unidigitata" = Cyrtulotibia unidigitata, "Semiterebellum suturocostatum" = Amekichilus suturocostatum
"Semiterebellum elongatum" = Africoterebellum elongatum Newton 1922 snail
"Rostellaria unidigitata" = Cyrtulotibia unidigitata Newton 1922 snail
"Semiterebellum suturocostatum" = Amekichilus suturocostatum Newton 1922 snail | |
Crepidula falconeri Newton 1922 slipper shell | |
Acrilla cf. affinis Deshayes 1861 wentletrap | |
Exechestoma cossmani Newton 1922 horn snail | |
Turritella mauryana, "Turritella cf. sulcifera" = Ispharina sulcifera
Turritella mauryana Newton 1922 turret shell
"Turritella cf. sulcifera" = Ispharina sulcifera Deshayes 1832 turret shell | |
Stellaxis bicingulata Newton 1922 sundial
Solariaxis cf. spectabilis Sowerby 1850 sundial
Solariaxis cf. canaliculata Lamarck 1804 sundial | |
Trivelina sphenarium | |
Trivelina cf. sphenarium Bayan 1873 |