Abakaliki town (Cretaceous of Nigeria)

Where: Nigeria (6.3° N, 8.1° E: paleocoordinates 9.4° S, 1.0° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Late/Upper Albian (105.3 - 99.6 Ma)

• STRATIGRAPHIC RELATIONS: From the unnamed lithostratigraphic unit. AGE: Late Albian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From zone 4, near the top of the unit.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified shale

• ENVIRONMENT: Presumably an shallow siliciclastic marine facies.
• SPECIFIC LITHOLOGY: Shale. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression

Collected by Reyment; reposited in the BMNH

• COLLECTOR: R.A. Reyment. REPOSITORY: BMNH, London

Primary reference: R. A. Reyment. 1955. The Cretaceous Ammonoidea of southern Nigeria and the southern Cameroons. Geological Survey of Nigeria Bulletin 25:1-112 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 82766: authorized by Austin Hendy, entered by Austin Hendy on 01.08.2008, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for Ammonoidea. NOMENCLATURE: Authoritative publication, but with somewhat antiquated nomenclature. Mostly identified to species resolution.
Show authors, comments, and common names
Cephalopoda
 Ammonitida - Brancoceratidae
Elobiceras lobitoense, Elobiceras aff. densicostatum, Mortoniceras (Mortoniceras) cf. pachys, Prohysteroceras wordiei, Neokentroceras curvicornu
Elobiceras lobitoense Crick 1922 ammonite
Elobiceras aff. densicostatum Crick 1922 ammonite
Prohysteroceras wordiei Spath 1922 ammonite
Neokentroceras curvicornu Spath 1922 ammonite
SUBSPECIES: N. curvicornu crassicornutum