Where: Niger (14.8° N, 5.7° E: paleocoordinates 6.5° N, 0.2° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Kalambaina Formation, Thanetian (59.2 - 56.0 Ma)
• STRATIGRAPHIC RELATIONS: From unknown lithostratigraphic unit, later included within the Kalambaina Formation (Reyment, 1966). AGE: Initially middle Eocene (Lutetian) and later Early Eocene. According to Reyment (1966), the microfaunas indicate that the unit is entirely of Paleocene age. The age. The ostracode fauna is similar to that of the Ewekoro Formation of southern Nigeria, which is of late Paleocene (Thanetian, Montian) age. STRATIGRAPHIC POSITION: From unknown position in local section.
• bed-level stratigraphic resolution
Environment/lithology: lagoonal or restricted shallow subtidal; lithified limestone
Size class: macrofossils
Preservation: cast, mold/impression
Collected by Moll; reposited in the MNHN
Collection methods: surface (in situ),
• COLLECTOR: Not stated in text. REPOSITORY: Ecole des Mines, Paris (now at Université Claude-Bernard, Lyon).
Primary reference: H. Douvillé. 1920. L'Eocène au Soudan et au Sénégal. Bulletin du Comité d'Etudes Historiques et Scientifiques de l'Afrique Occidentale Française 2:113-171 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 83985: authorized by Austin Hendy, entered by Austin Hendy on 13.09.2008, edited by Matthew Clapham
Creative Commons license: CC BY (attribution)
Taxonomic list
Foraminifera | |
Operculina canalifera d'Archiac 1850 | |
Cephalopoda | |
"Nautilus molli" = Deltoidonautilus molli
"Nautilus molli" = Deltoidonautilus molli Douvillé 1920 nautiloid | |
Gastropoda | |
"Mesalia fasciata" = Sigmesalia fasciata
"Mesalia fasciata" = Sigmesalia fasciata Lamarck 1804 turret shell | |
Gisortia brevis Douvillé 1920 cowry | |
"Eovasum soudanense n. sp." = Lyrischapa soudanense, Voluta sp.
"Eovasum soudanense n. sp." = Lyrischapa soudanense Douvillé 1920 volute
Voluta sp. Linnaeaus 1758 volute | |
Heligmotenia molli Douvillé 1920 snail | |
Chenopus (Maussenetia) dimorphospira Cossmann and Pissarro 1909 snail | |
Velates schmideli Chemnitz 1786 snail | |
Bivalvia | |
Pseudoheligmus nigeriensis Newton 1905 oyster | |
Crassostrea soudanensis Douvillé 1920 oyster |