Peninj-Middle Zone (Pleistocene of Tanzania)

Also known as ETE Locality 1391, Peninj-Middle Zone,

Where: Lake Natron Basin, Tanzania (2.3° S, 36.0° E: paleocoordinates 2.4° S, 35.9° E)

When: Middle Zone Member (Humbu Formation), Calabrian (1.8 - 0.8 Ma)

• ETE dating method: absolute, ETE age comment: Was-Mbugu olivine basalt smpls(1964&1969 Isaac) radiometric intage_max, radiometric intage_min

•Was originally under Hubu Formation. Base of formation is about ~1.75Ma, the Main Tuff is ~1.19+/-0.03Ma. The top of the Peninj Group is about 1.01+/-0.03Ma, therefore, the upper dsands are ~1.2-1.1Ma (Deino et al. 2006)

Environment/lithology: lacustrine; tuff

• ETE sed env 1: lacustrine, ETE sed env 2: . ETE event: ., ETE env comment: Lam. tuff&limstne
• ETE rock type adj: 0, ETE lithology comments: "Basalt tuff,orge&gry-brwn"

Size class: macrofossils

Collection methods: surface (in situ)

• ETE Size: both; ETE reference list: 975, ; ETE museum list:

Primary reference: G. Isaac. 1965. The stratigraphy of the Peninj beds and the provenance of the Natron australopithecine mandible. Quaternaria 7:101-130 [A. Behrensmeyer/A. Behrensmeyer/M. Kosnik]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 22552: authorized by Anna Behrensmeyer, entered by Anna Behrensmeyer on 13.04.2000, edited by John Damuth

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Gabbia cf. subadiella
ETE occurrence; species: mak - name shift
Mammalia
 Proboscidea - Elephantidae
"Elephas cf. recki" = Palaeoloxodon recki
"Elephas cf. recki" = Palaeoloxodon recki Dietrich 1915 elephant
 Artiodactyla - Giraffidae
Giraffa cf. pygmaea Harris 1976 giraffe
 Artiodactyla - Bovidae
Alcelaphini indet. Brookes 1876 antelope
ETE occurrence; species: Alcelaphini
"Megalotragus kattwinkeli" = Alcelaphus kattwinkeli Scwarz 1932 hartebeest
Connochaetes taurinus Burchell 1823 blue wildebeest
ETE occurrence; species: 7 prognu
Parmularius angusticornis Schwarz 1937 antelope
"Damaliscus niro" = Hippotragus niro Hopwood 1936 antelope
Tragelaphus cf. strepsiceros Pallas 1766 greater kudu
ETE occurrence; species: grandis; originally entered as "Tragelaphus cf. strepciceros"
Pelorovis sp. Reck 1928 antelope
 Artiodactyla - Hippopotamidae
Hippopotamus cf. gorgops Dietrich 1928 hippo
 Perissodactyla - Equidae
Equus sp. Linnaeus 1758 horse
 Perissodactyla - Rhinocerotidae
Ceratotherium simum Burchell 1821 white rhinoceros
 Tribosphenida - Sivatheridae
"Sivatherium maurusium" = Libytherium maurusium
"Sivatherium maurusium" = Libytherium maurusium Pomel 1893 placental
Reptilia
 Crocodylia - Crocodylidae
Crocodylus sp. Laurenti 1768 crocodile