Echi-Aliki, Ogoja Province (Cretaceous of Nigeria)

Where: Nigeria (6.2° N, 8.2° E: paleocoordinates 9.6° S, 1.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• STRATIGRAPHIC RELATIONS: From an unnamed lithostratigraphic unit. AGE: Late Albian, on the basis of ammonite biostratigraphy; zones 4-5. STRATIGRAPHIC POSITION: From near the top of the unit.

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified shale

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

Size class: macrofossils

Preservation: cast, mold/impression

Collected by K. Paulo, R.A. Reyment; reposited in the BMNH

• COLLECTOR: K. Paulo, R.A. Reyment. 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 82773: authorized by Austin Hendy, entered by Austin Hendy on 01.08.2008

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 - Hamitidae
? Hamites sp.
? Hamites sp. Parkinson 1811 ammonite
 Ammonitida - Brancoceratidae
Mortoniceras (Angolaites) gregoryi, Mortoniceras (Mortoniceras) quadrinodosum