Middle Silts/Gravels mbr.: Middle Pleistocene - Late/Upper Pleistocene, Kenya

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Oenomys sp.
Tilapia sp.
Reptilia
Crocodylus sp. Laurenti 1768
Mammalia
Mammalia indet. Linnaeus 1758
ETE occurrence; species: Carnivora
Mammalia - Tubulidentata - Orycteropodidae
Orycteropus sp. Geoffroy 1791
Mammalia - Hyracoidea - Procaviidae
Heterohyrax sp. (Gray 1868)
Mammalia - Proboscidea - Elephantidae
Loxodonta sp. Cuvier 1825
Mammalia - Perissodactyla - Rhinocerotidae
Ceratotherium cf. simum (Burchell 1821)
Mammalia - Hippopotamidae
Hippopotamus amphibius Linnaeus 1758
Mammalia - Suidae
Mesochoerus sp. Shaw and Cooke 1941
Phacochoerus sp. Cuvier 1826
Tapinochoerus sp. van Hoepen and van Hoepen 1932
synonym of Metridiochoerus
Potamochoerus sp. Gray 1854
Notochoerus sp. Broom 1925
Mammalia - Bovidae
Cephalophus sp. Smith 1827
Sylvicapra sp. Ogilby 1837
Alcelaphus sp. Blainville 1816
Redunca sp. Smith 1827
Kobus ellipsiprymnus (Ogilby 1833)
original and current combination Antilope ellipsiprymnus
Antidorcas sp. Sundevall 1847
Tragelaphus sp. de Blainville 1816
Tragelaphus cf. scriptus (Pallas 1766)
Mammalia - Rodentia - Thryonomyidae
Thryonomys sp. Fitzinger 1867
Mammalia - Rodentia - Muridae
Rattus cf. rattus (Linnaeus 1758)
Mammalia - Primates - Hominidae
Homo sp. Linnaeus 1758
Homo aff. erectus (Dubois 1892)
1 specimen
ETE number of identifiable specimens; species: mak - species name from unique name
Mammalia - Primates - Cercopithecidae
Cercopithecus cf. aethiops (Linnaeus 1758)
recombined as Chlorocebus aethiops
Papio anubis (Cuvier 1824)
Colobus sp. Illiger 1811
Actinopteri - Siluriformes - Clariidae
Clarias sp. Scopoli 1777
Gastropoda - Thiaridae
Melanoides sp. Olivier 1804
see common names

Geography
Country:Kenya
Coordinates: 0.5° North, 36.0° East (view map)
Paleocoordinates:0.5° North, 36.0° East
Time
Period:Quaternary Epoch:Pleistocene
10 m.y. bin:Cenozoic 6
*Period:Quaternary - Quaternary *Epoch:Pleistocene - Middle - Late/Upper Pleistocene
Key time interval:Middle Pleistocene - Late/Upper Pleistocene
Age range of interval:0.77400 - 0.01170 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Kapthurin Member:Middle Silts and Gravels
Stratigraphy comments: ETE dating method: composite, ETE age comment: Max age = .78 Ma;Min age = .25 +/- .12 Ma radiometric intage_min

Detailed tephrochronology reports can be found in Blegen et al. 2018 (A new tephrochronology for early diverse stone tool technologies and long-distance raw material transport in the Middle to Late Pleistocene Kapthurin Formation, East Africa, Journal of Human Evolution) supporting Middle–Late Pleistocene age for the Kapthurin Fm.
Lithology and environment
Primary lithology: siltstone
Lithology description: ETE rock type adj: 0, ETE lithology comments: light-br prly-strat slts w/thin grav horiz
Environment:fluvial-lacustrine indet.
Geology comments: ETE sed env 1: fluv_lacustr, ETE sed env 2: . ETE event: ., ETE env comment: fluv gradi>lacustr in NE
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection size:31 specimens
Reason for describing collection:taxonomic analysis
Collection method comments: ETE Size: macro; ETE reference list: 921, ; ETE museum list: KNM
Metadata
Also known as:ETE Locality 1100, Baringo, Kapthurin, Middle Silts/Gravels mbr.,
Database number:22276
Authorizer:A. Behrensmeyer Enterer:A. Behrensmeyer
Modifier:G. Varnham Research group:vertebrate
Created:1999-08-05 00:00:00 Last modified:2022-02-02 05:04:53
Access level:the public Released:1999-08-05 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
5576.ETE 1316M. Pickford. 1988. Geology and fauna of the middle Miocene hominoid site at Muruyur,Baringo District,Kenya. Human Evolution 3(5):381-390 [A. Behrensmeyer/A. Behrensmeyer/M. Kosnik]