Where: Enugu, Nigeria (5.8° N, 7.9° E: paleocoordinates 6.5° S, 1.3° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Bostrychoceras polyplocum ammonoid zone, Nkporo Shale Formation, Late/Upper Campanian (83.5 - 70.6 Ma)
• STRATIGRAPHIC RELATIONS: From the Nkporo Shales. AGE: Maastrichtian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From near the top of the unit.
•JA: thought by Reyment to be Maastrichtian, but late Campanian according to Collins and Morris 1975 based on placement of L. afikpoense horizon in the Bostrychoceras polyplocum Zone
• group of beds-level stratigraphic resolution
Environment/lithology: offshore; lithified shale
Size class: macrofossils
Preservation: cast, mold/impression
Collected by R. A. Reyment; reposited in the BMNH
• COLLECTOR: Unknown. REPOSITORY: BMNH.
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 82733: authorized by Austin Hendy, entered by Austin Hendy on 31.07.2008, edited by John Alroy and Matthew Clapham
Creative Commons license: CC BY (attribution)
Taxonomic list
| Malacostraca | |
Costacopluma concava n. gen. n. sp.1
Costacopluma concava n. gen. n. sp.1 Collins and Morris 1975 crab "Zone of B. polyplocum, horizon of Libycoceras afikpoense, Anofia"
| |
| Cephalopoda | |
|
Bostrychoceras sp. Hyatt 1900 ammonite | |
|
Sphenodiscus sp. Meek 1871 ammonite
Sphenodiscus aff. lobatus Tuomey 1856 ammonite
Libycoceras afikpoense Reyment 1955 ammonite | |
| Bivalvia | |
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