Where: Niger (16.7° N, 5.8° E)
• Paleocoordinates: 8.7° N, 10.5° E (Wright 2013)
• coordinate stated in text
• outcrop-level geographic resolution
When: Nigericeras gadeni ammonoid zone, Late/Upper Cenomanian (99.6 - 93.5 Ma)
• Horizon II (Dumbli horizon)
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified, sandy limestone
Size class: macrofossils
Collection methods: Repository: Muséum d'Histoire naturelle de Genève
Primary reference: C. Meister, K. Alzouma, J. Lang and B. Mathey. 1992. Les ammonites du Niger (Afrique occidentale) et la transgression Transsaharienne au cours du Cénomanien-Turonien. Geobios 25:55-100 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 175446: authorized by Matthew Clapham, entered by Matthew Clapham on 12.12.2015
Creative Commons license: CC0 (CC0)
Taxonomic list
Cephalopoda | |
Neolobites sp. Fisher 1882 ammonite
Metengonoceras dumbli Cragin 1893 ammonite |