KB24, Kossom Bougoudi (Pliocene of Chad)

Where: Chad (16.3° N, 18.7° E: paleocoordinates 16.2° N, 18.4° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Zanclean (5.3 - 3.6 Ma)

• According to De Bonis et al. (2008), the geologic age of the main KB locality has been estimated to be about 5 Ma by biochronologic estimation and about 5.3 Ma by radiometric studies on cosmogenic nuclides of beryllium (authigenic 10B/9B). However, KB24 is "much younger" according to Geraads et al. (2009);.

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine; unlithified, bioturbated, green sandstone

• lithology represents "repetitive climatic fluctuations between environments of ephemeral streams and of lakes"
• "The sandstones are little or poorly cemented, without oblique stratification but strongly channeled... markedly heterogranular with an abundant supporting matrix. Frequent dessication cracks... insect bioturbations... are omnipresent... Fossils are known almost entirely from lower and upper green sandstones"

Size classes: macrofossils, mesofossils

Primary reference: M. Brunet, A. Beuavilain, D. Billiou, H. Bocherens, J. R. Boisserie, L. De Bonis, P. Branger, A. Brunet, Y. Coppens, R. Daams, J. Dejax, C. Denys, P. Duringer, V. Eisenmann, F. Fanoné, P. M. Fronty Gayet, D. Gerrads, F. Guy, M. Kasser, G. Koufos, A. Likus, N. Lopez-Martinez, and A. Lo. 2000. Chad: discovery of a vertebrate fauna close to the Mio-Pliocene boundary. Journal of Vertebrate Paleontology 20(1):205-209 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 209295: authorized by Matthew Clapham, entered by Matthew Clapham on 28.04.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Aves
 Suliformes - Phalacrocoracidae
Phalacrocorax cf. carbo
Phalacrocorax cf. carbo Linnaeus 1758 great cormorant
 Pelecaniformes - Ardeidae
Ardeidae indet.
Ardeidae indet. Leach 1820 heron
 Anseriformes - Anatidae
Anatinae indet.
Anatinae indet. Vigors 1825 duck