Also known as Cutting #12
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 #12. 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 51243: 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 mauryana, "Turritella cf. sulcifera" = Ispharina sulcifera
Turritella mauryana Newton 1922 turret shell
"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 | |
Hilda turriculata Newton 1922 true whelk
Strepsidura spirata Newton 1922 true whelk
Janiopsis nigeriensis 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
Athleta lugardi Newton 1922 volute | |
Bonellitia cf. evulsa Solander 1766 snail
Cancellaria multiplicis Newton 1922 snail | |
"Amphiperas nigeriensis" = Eovolva nigeriensis
"Amphiperas nigeriensis" = Eovolva nigeriensis Newton 1922 snail | |
Tugurium nigeriense Newton 1922 carrier shell | |
Neverita cf. calvimontana Deshayes 1864 moon snail
Sinum cf. clathratum Gmelin 1790 moon snail | |
Stellaxis bicingulata Newton 1922 sundial
Solariaxis cf. spectabilis Sowerby 1850 sundial | |
Bivalvia | |
Striarca africana Newton 1922 clam
"Anadara nigeriensis" = Protonoetia nigeriensis Newton 1922 clam
Fossularca africana Newton 1922 ark | |
Glycymeris nigeriensis Newton 1922 clam | |
Plicatula polymorpha Bellardi 1854 scallop | |
Phacoides eaglesomei Newton 1922 clam | |
Callista kitsoni Newton 1922 venus clam
Cordiopsis incrassata Nyst 1836 venus clam | |
Cardita cf. costaeirregularis Newton 1922 clam
Cardita costaenodulosis Newton 1922 clam |