Bivalvia, Schenck collection, Ameki (Eocene of Nigeria)

Where: Nigeria (5.0° N, 7.5° W: paleocoordinates 0.9° N, 13.4° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Ameki Formation, Lutetian (47.8 - 41.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; green, argillaceous, sandy mudstone and sandstone

• The formation is predominantly greenish-grey clayey sandstone and sandy claystone. It may locally show shaley development or inclusions of white and mottled claystone and sandstone. The typical greenish gray mudstone includes variable amounts of interbedded sandstone.

Primary reference: A. Chavan. 1938. Un groupe africain de carditidés, Cossmannella Mayer-Eymar. Bulletin de la Société Géologique de France 8(1):3-10 [L. Villier/L. Villier]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 60711: authorized by Loic Villier, entered by Loic Villier on 21.05.2006, edited by Jocelyn Sessa

Creative Commons license: CC BY (attribution)

Taxonomic list

• Foraminifera, ostracods, fish, crustaceans, and cephalopods are compiled by Adegoke (1968) as occurring in this formation, no specific locality information is given.
 Lituolacea - Ammobaculinidae
 Rotaliina - Cassidulinidae
 Buliminacea - Uvigerinidae
 Buliminacea - Buliminidae
 Rotaliina - Bolivinidae
 Globigerinaceae - Globigerinidae
"Pullenia obliquiloculata" = Pulleniatina obliquiloculata Parker and Jones 1865
 Globigerinaceae - Globorotaliidae
"Globigerina dutertrei" = Neogloboquadrina dutertrei
"Globigerina dutertrei" = Neogloboquadrina dutertrei d'Orbigny 1839
 Globigerinina - Heterohelicidae
"Textularia globulosa" = Heterohelix globulosa
"Textularia globulosa" = Heterohelix globulosa Ehrenberg 1840
 Textulariacea - Textulariidae
Textularia gramen dOrbigny 1846
 Nodosariacea - Nodosariidae
 Decapoda - Carpiliidae
Holcocarcinus sulcatus Withers 1924 crab
 Podocopida -
 Podocopida - Bythocyprididae
 Podocopa - Loxoconchidae
 Carditida - Carditidae
"Venericardia cf. planicosta" = Venericor planicosta
"Venericardia cf. planicosta" = Venericor planicosta Lamarck 1801 clam
 Cardiida -
 Rhinopristiformes - Pristidae
Pristis mucrodens White 1926 sawfish
Pristis lathami Galeotti 1837 sawfish
Pristis hamatus White 1926 sawfish
Propristis schweinfurthi Priem 1897 sawfish
 Myliobatiformes - Myliobatidae
Myliobatis toliapicus Agassiz 1843 eagle ray
Myliobatis dixoni Agassiz 1843 eagle ray
Myliobatis striatus Agassiz 1843 eagle ray
Rhinoptera sherborni White 1926 cownose ray
 Lamniformes - Otodontidae
"Odontaspis koerti" = Otodus koerti
"Odontaspis koerti" = Otodus koerti Stromer 1910 mackerel shark
Odontaspis koerti and Odontaspis koerti itoriensis
 Lamniformes - Lamnidae
"Oxyrhina desori" = Isurus oxyrinchus Rafinesque 1810 mako shark
Oxyrhina desori praecursor
Carcharodon debrayi Leriche 1906 white shark
 Carchariniformes - Carcharhinidae
Hypoprion overricus White 1926 requiem shark
Aprionodon amekiensis White 1926 requiem shark
Galeocerdo latidens Agassiz 1843 tiger shark
 Acipenseriformes -
 Acanthomorphata - Sphyraenidae
Sphyraena lugardi White 1926 barracuda
 Scombriformes -
 Acanthuriformes - Sciaenidae
 Spariformes - Sparidae
 Labriformes - Labridae
 Siluriformes - Ariidae
Otolithus (Arius) angulatus Frost 1926 Ariid catfish
Arius hewardbelli White 1926 Ariid catfish
Otolithus (Arius) africanus Frost 1926 Ariid catfish
Arius kitsoni White 1926 Ariid catfish
Otolithus (Arius) amekiensis Frost 1926 Ariid catfish
 Siluriformes - Claroteidae
Chrysichthys eaglesomei White 1926 catfish
 Scleractinia - Turbinoliidae
Turbinolia sp. Lamarck 1816 stony coral
 Miliolida -
 Miliolida - Peneroplidae
 Miliolida - Spiroloculinidae
Spiroloculina excavata d'Orbigny 1846