Ameki, SE of (Eocene of Nigeria)

Where: Nigeria (5.6° N, 7.5° E: paleocoordinates 1.1° N, 2.0° E)

• coordinate stated in text

• local area-level geographic resolution

When: Ameki Formation (Bende-Ameki Group), Bartonian (41.3 - 38.0 Ma)

• Bartonian age after Gingerich (2010)

• formation-level stratigraphic resolution

Environment/lithology: deep-water; lithology not reported

• The Ameki Formation exhibits deeper marine formations that progress seaward due to the abundance of shale in the stratigraphy.

Size class: macrofossils

Preservation: original phosphate

Collection methods: surface (float),

Primary reference: L.B. Halstead and J. A. Middleton. 1974. New material of the archaeocete whale Pappocetus lugardi Andrews, from the middle Eocene of Nigeria. Journal of Mining and Geology 8(1 & 2):81-85 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 32905: authorized by Mark Uhen, entered by Mark Uhen on 18.07.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Rhinopristiformes - Pristidae
Pristis mucrodens n. sp. White 1926 sawfish
Pristis lathami Galeotti 1837 sawfish
Pristis hamatus n. sp. White 1926 sawfish
Propristis schweinfurthi Priem 1897 sawfish
 Myliobatiformes - Dasyatidae
Myliobatis ? toliapicus Agassiz 1843 eagle ray
Myliobatis dixoni Agassiz 1843 eagle ray
Myliobatis striatus Agassiz 1843 eagle ray
Rhinoptera sherborni n. sp. White 1926 cownose ray
 Lamniformes - Otodontidae
"Odontaspis koerti" = Otodus koerti
"Odontaspis koerti" = Otodus koerti Stromer 1910 mackerel shark
 Lamniformes - Lamnidae
"Oxyrhina desori" = Isurus oxyrinchus Rafinesque 1810 mako shark
Carcharodon debrayi Leriche 1906 white shark
 Carchariniformes - Carcharhinidae
Hypoprion overricus n. sp. White 1926 requiem shark
Aprionodon amekiensis n. sp. White 1926 requiem shark
Galeocerdo latidens Agassiz 1843 tiger shark
Carcharhinus nigeriensis n. sp. White 1926 requiem shark
Actinopteri
 Acipenseriformes -
 Acanthomorphata - Sphyraenidae
Sphyraena lugardi n. sp. White 1926 barracuda
 Scombriformes -
Scombramphodon woodwardi n. sp. White 1926
 Acanthomorphata - Sciaenidae
Sciaena simplex n. sp. Frost 1926
 Spariformes - Sparidae
Pagellus concavus n. sp. Frost 1926
 Labriformes - Labridae
Pseudosphaerodon pycnodoides n. sp. White 1926
Crenilabrus eocenicus n. sp. White 1926
Platylaemus nigeriensis n. sp. White 1926
 Siluriformes - Ariidae
Arius angulatus n. sp. Frost 1926 Ariid catfish
Arius hewardbelli n. sp. White 1926 Ariid catfish
Arius africanus n. sp. Frost 1926 Ariid catfish
Arius kitsoni n. sp. White 1926 Ariid catfish
Arius amekiensis n. sp. Frost 1926 Ariid catfish
 Siluriformes - Claroteidae
Chrysichthys eaglesomei n. sp. White 1926 catfish
Mammalia
 Cetacea - Protocetidae
Pappocetus lugardi Andrews 1920 whale