KB-6, Koum Basin (KB) (Cretaceous to of Cameroon)

Also known as Mayo Djarendi

Where: Nord, Cameroon (8.3° N, 14.8° E: paleocoordinates 8.2° S, 5.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Grés de Gaba Member (Koum Formation), Aptian to Aptian (125.0 - 100.5 Ma)

• higher in section than KB-17; fossil-bearing strata < 0.5 m of section, in two superimposed layers

• group of beds-level stratigraphic resolution

Environment/lithology: "floodplain"; coarse-grained sandstone and paleosol/pedogenic, concretionary, calcareous mudstone

• "dominately fluvial and overbank deposits"; "part of a coarse-grained meandering stream system"
• "the base of the locality is coarse sand...The section fines upward and small bones...are concentrated in the lower portion of a mudstone, at the top of which a calcareous paleosol is developed." "alternating sandstone and siltstone couplets" Root casts, carbonate nodules.

Size classes: macrofossils, mesofossils

Preservation: trace

Collected in 1986-1987

Collection methods: quarrying, mechanical,

Primary reference: L. J. Flynn, A. Brillanceau, M. Brunet, Y. Coppens, J. Dejax, M. Duperon-Laudoueneix, G. Ekodeck, K. M. Flanagan, E. Heintz, J. Hell, L. L. Jacobs, D. R. Pilbeam, S. Sen and S. Djallo. 1987. Vertebrate fossils from Cameroon, West Africa. Journal of Vertebrate Paleontology 7(4):469-471 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 38918: authorized by Matthew Carrano, entered by Matthew Carrano on 17.05.2004, edited by Matthew Oreska, Roger Benson and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta indet.6 Linnaeus 1758 insect
"trace fossils resembling hymenopteran larval cases"
 Neopterygii -
Semionotiformes indet.5 Arambourg and Bertin 1958
 Dipnoi -
Dipnoi indet.5 Müller 1884 lungfish
 Salientia -
 Testudines -
"Chelonia indet." = Testudines5
"Chelonia indet." = Testudines5 Batsch 1788 turtle
 Saurischia -
Somphospondyli indet.7 Wilson and Sereno 1998 sauropod
CAM 325-329
 Saurischia - Spinosauridae
? Spinosauridae indet.6 Stromer 1915 tetanuran
CAM 162, 320, 322, 349-358, 360; SMU 72033
Spinosaurus sp.6 Stromer 1915 tetanuran
 Ornithischia -
cf. Thyreophora indet.2 ornithischian
 Neornithischia -
cf. Ouranosaurus sp.4 Taquet 1976 bird foot dinosaur
CAM 1, 3-16, 303-309, 323, 361; SMU 72025, 72032, 72077
 Loricata -
aff. Araripesuchus sp.5 Price 1959 crocodilian
CAM 151, 174, 126, 226
Crocodylia indet.3 crocodilian
CAM 313, 346-348
 Squamata -
Mammalia indet.1 Linnaeus 1758 mammal
CAM 56 (mandible fragment)
 Theriiformes -
Cladotheria indet.4 McKenna 1975 mammal
Theria indet.4 Parker and Haswell 1897 mammal
 Pinales - Cheirolepidiaceae
Classopollis sp.5 Pflug 1953