Bivalvia, Schenck collection, Ameki (Eocene of Nigeria)
Where: Nigeria (5.0° N, 7.5° E: paleocoordinates 0.7° S, 1.4° E)
• 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.
Size class: macrofossils
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.
Show authors, comments, and common names
unclassified | |
Foraminifera | |
Textularia gramen dOrbigny 1846 | |
Tubothalamea | |
Spiroloculina excavata d'Orbigny 1846 | |
Foraminifera | |
"Globigerina cretacea" = Archaeoglobigerina cretacea
"Globigerina cretacea" = Archaeoglobigerina cretacea d'Orbigny 1840 | |
"Textularia globulosa" = Heterohelix globulosa
"Textularia globulosa" = Heterohelix globulosa Ehrenberg 1840 | |
"Pullenia obliquiloculata" = Pulleniatina obliquiloculata, "Globigerina pachyderma" = Neogloboquadrina pachyderma, "Globigerina dutertrei" = Neogloboquadrina dutertrei
"Pullenia obliquiloculata" = Pulleniatina obliquiloculata Parker and Jones 1865
"Globigerina pachyderma" = Neogloboquadrina pachyderma Ehrenberg 1861
"Globigerina dutertrei" = Neogloboquadrina dutertrei d'Orbigny 1839 | |
Nodosariata | |
Globothalamea | |
Foraminifera | |
Anthozoa | |
Turbinolia sp. Lamarck 1816 stony coral | |
Ostracoda | |
Loxoconcha lagosensis ostracod | |
Basslerites abalidiegwuensis ostracod | |
Bythocypris alejo ostracod | |
Malacostraca | |
Holcocarcinus sulcatus Withers 1924 crab | |
Bivalvia | |
Cossmannella costaenodulosis, Cossmannella triparticostata, Cossmannella costaeirregularis, "Venericardia cf. planicosta" = Venericor planicosta
"Venericardia cf. planicosta" = Venericor planicosta Lamarck 1801 clam | |
Cephalopoda | |
Osteichthyes | |
Cylindracanthus rectus Agassiz 1843 ray-finned fish | |
Actinopteri | |
Sphyraena lugardi White 1926 barracuda | |
Otolithus (Pagellus) concavus Frost 1926 perch-like fish | |
Otolithus (Sciaena) simplex Frost 1926 | |
Pseudosphaerodon pycnodoides White 1926
Platylaemus nigeriensis White 1926
Crenilabrus eocenicus White 1926 | |
Scombramphodon woodwardi White 1926 | |
Otolithus (Arius) africanus, Otolithus (Arius) angulatus, Arius kitsoni, Otolithus (Arius) amekiensis, Arius hewardbelli
Otolithus (Arius) africanus Frost 1926 Ariid catfish
Otolithus (Arius) angulatus Frost 1926 Ariid catfish
Arius kitsoni White 1926 Ariid catfish
Otolithus (Arius) amekiensis Frost 1926 Ariid catfish
Arius hewardbelli White 1926 Ariid catfish | |
Chrysichthys eaglesomei White 1926 catfish | |
Chondrichthyes | |
Galeocerdo latidens Agassiz 1835 tiger shark | |
Hypoprion overricus White 1926 requiem shark
Aprionodon amekiensis White 1926 requiem shark | |
"Oxyrhina desori" = Isurus oxyrinchus, Carcharodon debrayi
Carcharodon debrayi Leriche 1906 white shark | |
"Odontaspis koerti" = Brachycarcharias koerti
"Odontaspis koerti" = Brachycarcharias koerti Stromer 1910 sand tiger shark Odontaspis koerti and Odontaspis koerti itoriensis
| |
Pristis mucrodens White 1926 sawfish
Pristis hamatus White 1926 sawfish
Pristis lathami Galeotti 1837 sawfish
Propristis schweinfurthi Priem 1897 sawfish | |
"Myliobatis dixoni" = Aetomylaeus dixoni, "Myliobatis striatus" = Aetomylaeus striatus, Myliobatis toliapicus, Rhinoptera sherborni
"Myliobatis dixoni" = Aetomylaeus dixoni Agassiz 1843 eagle ray
"Myliobatis striatus" = Aetomylaeus striatus Agassiz 1843 eagle ray
Myliobatis toliapicus Agassiz 1843 eagle ray
Rhinoptera sherborni White 1926 cownose ray | |
Truncatulina | |