Also known as Cutting #1
Where: Nigeria (5.0° N, 7.5° E)
• Paleocoordinates: 5.2° S, 7.5° E (Wright 2013)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Ameki Formation (Bende-Ameki Group), Lutetian (47.8 - 41.3 Ma)
• Cutting #1. 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 51237: authorized by Austin Hendy, entered by Austin Hendy on 01.06.2005, edited by Pete Wagner
Creative Commons license: CC0 (CC0)
Taxonomic list
Gastropoda | |
Stellaxis bicingulata Newton 1922 sundial
Solariaxis cf. spectabilis Sowerby 1850 sundial
Solariaxis cf. canaliculata Lamarck 1804 sundial | |
Conospirus cf. parisiensis Deshayes 1835 cone shell | |
Surcula africana Newton 1922 snail | |
Eopleurotoma nigeriensis Newton 1922 turrid | |
"Bulbifusus nigieriensis" = Pseudomazzalina nigeriensis
"Bulbifusus nigieriensis" = Pseudomazzalina nigeriensis Newton 1922 snail | |
Strepsidura spirata Newton 1922 true whelk
Cominella douvillei Newton 1922 true whelk | |
Pteropurpura cf. tricarinata Lamarck 1803 murex snail
Poirieria cf. calcitrapa Lamarck 1803 murex snail | |
Volutospina conicoturrita Newton 1922 volute
Athleta lugardi Newton 1922 volute | |
Buccinorbis kitsoni Newton 1922 snail | |
Bonellitia cf. evulsa Solander 1766 snail | |
"Amphiperas nigeriensis" = Eovolva nigeriensis
"Amphiperas nigeriensis" = Eovolva nigeriensis Newton 1922 snail | |
"Semiterebellum suturocostatum" = Amekichilus suturocostatum, "Rostellaria unidigitata" = Cyrtulotibia unidigitata
"Semiterebellum suturocostatum" = Amekichilus suturocostatum Newton 1922 snail
"Rostellaria unidigitata" = Cyrtulotibia unidigitata Newton 1922 snail | |
Turbocalyptraea scabrosa n. gen. n. sp., Crepidula falconeri
Turbocalyptraea scabrosa n. gen. n. sp. Eames 1957 slipper shell Locality not given, so I put it in 1 (PJW)
Crepidula falconeri Newton 1922 slipper shell | |
Turritella mauryana Newton 1922 turret shell | |
Bivalvia | |
Nucula costaeimbricatis Newton 1922 nut clam | |
Striarca africana Newton 1922 clam
"Anadara nigeriensis" = Protonoetia nigeriensis Newton 1922 clam
Fossularca africana Newton 1922 ark | |
Ostrea cf. ludensis Deshayes 1861 oyster
Ostrea cf. marginidentata Wood 1861 oyster | |
Cardita costaenodulosis Newton 1922 clam | |
"Cardium cf. obliquum" = Loxocardium obliquum
"Cardium cf. obliquum" = Loxocardium obliquum Lamarck 1805 cockle | |
Peronaea nigeriensis Newton 1922 tellin clam | |
"Mactra semisulcata" = Spisula semisulcata
"Mactra semisulcata" = Spisula semisulcata Lamarck 1805 clam | |
Raetomya schweinfurthi Mayer-Eymar 1887 clam | |
"Corbula rugosa" = Notocorbula rugosa
"Corbula rugosa" = Notocorbula rugosa Lamarck 1806 clam | |
Trivelina sphenarium | |
Trivelina cf. sphenarium Bayan 1873 |