Where: Kenya (0.4° S, 34.1° E: paleocoordinates 1.6° S, 32.0° E)

When: Hiwegi Formation, Burdigalian (20.4 - 16.0 Ma)

• Originally mapped as lacustrine Kulu Formation; subsequent studies indicate it is a lacustrine facies in basal part of Hiwegi Formation

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•K-Ar dates published by Drake et al. (1988) suggested that the Hiwegi For- mation was deposited ~17.9 Ma, and that the entire fossiliferous Rusinga Group sequence (Fig- ure 1) was deposited in less than a half million years. More recent analyses using 40Ar/39Ar dates, magnetostratigraphy, and lithostratgiraphy demon- strate that the fossiliferous strata on Rusinga were deposited over a much longer time interval, between ~17-20 Ma (Peppe et al., 2009; Peppe et al., 2011; McCollum et al., 2012; Peppe et al. 2016; Peppe et al. 2017).

Environment/lithology: lacustrine - large; lithology not reported

Size class: macrofossils

Primary reference: M. Pickford. 2007. A new suiform (Artiodactyla, Mammalia) from the Early Miocene of East Africa. Comptes Rendu Palevol 6(3):221-229 [P. Holroyd/P. Holroyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 77024: authorized by Patricia Holroyd, entered by Patricia Holroyd on 16.12.2007

Creative Commons license: CC BY (attribution)