Also known as Cutting #15
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 #15. 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; 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 51246: authorized by Austin Hendy, entered by Austin Hendy on 01.06.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Crepidula falconeri Newton 1922 slipper shell | |
"Turritella cf. sulcifera" = Ispharina sulcifera
"Turritella cf. sulcifera" = Ispharina sulcifera Deshayes 1832 turret shell | |
Rostellaria bidigitata Newton 1922 true conch | |
"Rostellaria unidigitata" = Cyrtulotibia unidigitata, "Semiterebellum elongatum" = Africoterebellum elongatum, "Semiterebellum suturocostatum" = Amekichilus suturocostatum
"Rostellaria unidigitata" = Cyrtulotibia unidigitata Newton 1922 snail
"Semiterebellum elongatum" = Africoterebellum elongatum Newton 1922 snail
"Semiterebellum suturocostatum" = Amekichilus suturocostatum Newton 1922 snail | |
Strepsidura spirata Newton 1922 true whelk
Cominella douvillei Newton 1922 true whelk | |
Surcula africana Newton 1922 snail | |
Conospirus cf. parisiensis Deshayes 1835 cone shell | |
Buccinorbis kitsoni Newton 1922 snail | |
Poirieria cf. calcitrapa Lamarck 1803 murex snail | |
Volutospina conicoturrita Newton 1922 volute
Volutospina multispinosa Newton 1922 volute | |
Bonellitia cf. evulsa Solander 1766 snail | |
"Amphiperas nigeriensis" = Eovolva nigeriensis
"Amphiperas nigeriensis" = Eovolva nigeriensis Newton 1922 snail | |
Tugurium nigeriense Newton 1922 carrier shell | |
Stellaxis bicingulata Newton 1922 sundial
Solariaxis cf. canaliculata Lamarck 1804 sundial
Solariaxis cf. spectabilis Sowerby 1850 sundial | |
Bivalvia | |
"Anadara nigeriensis" = Protonoetia nigeriensis, Fossularca africana
"Anadara nigeriensis" = Protonoetia nigeriensis Newton 1922 clam
Fossularca africana Newton 1922 ark | |
Glycymeris nigeriensis Newton 1922 clam | |
Ostrea cf. marginidentata Wood 1861 oyster | |
Phacoides eaglesomei Newton 1922 clam | |
"Corbula rugosa" = Notocorbula rugosa
"Corbula rugosa" = Notocorbula rugosa Lamarck 1806 clam | |
Cordiopsis incrassata Nyst 1836 venus clam | |
"Cardium cf. obliquum" = Loxocardium obliquum
"Cardium cf. obliquum" = Loxocardium obliquum Lamarck 1805 cockle | |
Cardita costaenodulosis Newton 1922 clam | |
Trivelina sphenarium | |
Trivelina cf. sphenarium Bayan 1873 |