Fauna 8, 30.3 km from Calabar, south-east Nigeria (Cretaceous of Nigeria)

Where: Nigeria (5.2° N, 8.3° E: paleocoordinates 10.1° S, 0.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Odukpani Formation, Middle Cenomanian (99.6 - 93.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, gray shale

• 'The Odukpani Formation and Nkporo Shale are well exposed in road cuttings north-west of Calabar... The exposed parts of the Odukpani Formation consist here mainly of grey shales, pyritic at the base but calcareous and including numerous thin limestones higher up. A well-developed limestone-shale sequence occurs close to the top of the formation and at its base are the remnants after dissolution of another prominent limestone horizon.'

Size class: macrofossils

Preservation: mold/impression

Collection methods: specimens in the Department of Palaeontology, British Museum (Natural History), London, and in the Department of Geology, University of Ilorin, Nigeria; probably own field collection

Primary reference: P. M. P. Zaborski. 1985. Upper Cretaceous ammonites from the Calabar region, south-east Nigeria. Bull. Br. Mus. nat. Hist. (Geol.) 39(1):1-72 [M. Aberhan/S. Nurnberg]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 69527: authorized by Martin Aberhan, entered by Sabine Nürnberg on 27.02.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• Focus on ammonites.
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Cephalopoda
 Ammonitida - Forbesiceratidae
Forbesiceras obtectum
Forbesiceras obtectum Sharpe 1853 ammonite
 Ammonitida - Acanthoceratidae
"Euomphaloceras cunningtoni" = Cunningtoniceras cunningtoni, Calycoceras (Newboldiceras) annulatum
"Euomphaloceras cunningtoni" = Cunningtoniceras cunningtoni Sharpe 1855 ammonite
E. cunningtoni alatum subsp. nov.
Calycoceras (Newboldiceras) annulatum Collignon 1964 ammonite
 Ammonitida - Tetragonitidae
Anagaudryceras involvulum
Anagaudryceras involvulum Stoliczka 1865 ammonite
 Ammonitida - Turrilitidae
Turrilites (Turrilites) acutus
Turrilites (Turrilites) acutus Passy 1832 ammonite