5 miles south of Keana (Cretaceous of Nigeria)

Where: Nigeria (8.1° N, 8.8° E: paleocoordinates 6.2° S, 1.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Early/Lower Turonian (93.5 - 89.3 Ma)

• STRATIGRAPHIC RELATIONS: From the unnamed lithostratigraphic unit. AGE: Early Turonian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within the unit.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

• ENVIRONMENT: Presumably an shallow siliciclastic marine facies.
• SPECIFIC LITHOLOGY: Not stated, but most probably a siliciclastic facies. 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 82776: 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 - Pseudotissotiidae
Choffaticeras spathi n. sp.
Choffaticeras spathi n. sp. Reyment 1955 ammonite