Mentess (Cretaceous of Niger)

Where: Niger (17.0° N, 4.3° E: paleocoordinates 7.0° N, 0.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Maastrichtian (72.1 - 66.0 Ma)

• The base of the Mentess cliff is formed from marls called the "Mosasaurus Shales" that represent Terme II.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; marl

Size class: macrofossils

Collected by L. Thaler, D.E. Russell, J. Sudre, P. Louis in 1966

• Repository: Laboratoire de Paléontologie de l'Université des Sciences et Techniques du Languedoc

Primary reference: H. Cappetta. 1972. Les poissons crétacés et tertiaires du bassin des Iullemmeden (République du Niger). Palaeovertebrata 5:179-251 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 229529: authorized by Matthew Clapham, entered by Matthew Clapham on 15.03.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Hybodontiformes - Acrodontidae
Asteracanthus aegyptiacus Stromer 1927 elasmobranch
 Rajiformes - Sclerorhynchidae
Schizorhiza stromeri Weiler 1930 ray
Ischirhiza nigeriensis Tabaste 1963 ray
Dalpiazia stromeri Checchia-Rispoli 1933 ray
 Lamniformes - Lamnidae
Lamna biauriculata Wanner 1902 mackerel shark
n. ssp. nigeriana
Life
 Salmoniformes - Cimolichthyidae
Cimolichthys sp. Leidy eutherian
Coccolithophyceae
 Tetraodontiformes - Prymnesiophycidae
Stephanodus lybicus Zittel 1888
 Alepisauroidei - Enchodontidae
Enchodus aff. lamberti Arambourg and Joleaud 1943
Enchodus elegans Dartevelle and Casier 1949
Actinopteri
 Pycnodontoidei - Pycnodontidae