N'Toum quarry, bed 4 (Cretaceous of Gabon)

Where: Gabon (0.4° N, 9.8° E: paleocoordinates 14.0° S, 2.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Madiela Formation, Early/Lower Albian (112.0 - 109.0 Ma)

• Assigned to Albian age by their ammonite fauna (Hourcq and Hausknecht, 1954; Hudeley and Belmonte, 1970) such as Douvilleiceras monile (Sowerby, 1816) and D. mamillatum (Schlotheim, 1813). [Douvilleiceras species suggest Early Albian or perhaps Middle Albian age]

• bed-level stratigraphic resolution

Environment/lithology: marl

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: Geology Department, Faculty of Sciences Masuku University of Franceville (Gabon)

Primary reference: B. Musavu Moussavou and R. Mabicka Obame. 2015. Taxonomy and paleoecology of Albian Madiela Formation gastropods, Gabonese coastal basin: N’Toum quarry section. Bulletin de la Société Géologique de France 186:35-42 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 209485: authorized by Matthew Clapham, entered by Matthew Clapham on 03.05.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

 Pholadida - Pleuromyidae
Pleuromya "sp. 1" Meek 1873 clam
 Neomphalida - Neomphalidae
Lithomphalus "sp. A" Kiel and Campbell 2005 snail
 Sorbeoconcha - Aporrhaidae
Aporrhaidae indet. Gray 1850 snail
 Architaenioglossa - Ampullinidae
Ampullina sp. Férussac 1822 snail