Middle Awash - Chorora fm. (Miocene to of Ethiopia)

Also known as ETE Locality 978, Middle Awash - Chorora fm.,

Where: Ethiopia (10.7° N, 40.5° E: paleocoordinates 10.1° N, 39.7° E)

When: Chorora Formation (Awash Group), Serravallian to Serravallian (13.8 - 7.2 Ma)

• ETE dating method: absolute, ETE age comment: Max age = 12 myo (Bacca volcanics). Min age = 9 myo (ignimbrite overlying the fm). radiometric intage_max, radiometric intage_min

Environment/lithology: lacustrine

• ETE sed env 1: lacustrine, ETE sed env 2: . ETE event: ., ETE env comment: diatoms suggest lacustr conditions
• ETE rock type adj: ., ETE lithology comments: "diatom sed intercal w/pyroclastic layers (tuffs sed includ clays,pumice,&diatomite)"

Collection methods: surface (in situ)

• ETE Size: both; ETE reference list: 510, ; ETE museum list: ENM

Primary reference: J. E. Kalb, C. J. Jolly, A. Mebrate, S. Tebedge, C. Smart, E.B. Oswald, D. Cramer, P. Whitehead, C.B. Wood, G.C. Conroy, T. Adefris, L. Sperling, and B. Kana. 1982. Fossil Mammals and Artifacts from the Middle Awash Valley, Ethiopia. Nature 298:25-29 [A. Behrensmeyer/A. Behrensmeyer/M. Kosnik]more details

PaleoDB collection 22157: authorized by Anna Behrensmeyer, entered by Anna Behrensmeyer on 19.04.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

cf. Demdromurinae indet.
ETE occurrence; species: cf. Demdromurinae
 Glires -
Rodentia indet. rodent
ETE occurrence; species: Rodentia
 Rodentia - Thryonomyidae
Paraphiomys sp. Andrews 1914 cane rat
ETE occurrence; species: 91-Chorora
Paraphiomys sp. Andrews 1914 cane rat
ETE occurrence; species: 92-Chorora
 Perissodactyla - Rhinocerotidae
 Perissodactyla - Equidae
"Hipparion cf. primigenium" = Hippotherium primigenium, Hipparion sp.
"Hipparion cf. primigenium" = Hippotherium primigenium von Meyer 1829 hipparionine horse
Hipparion sp. de Christol 1832 hipparionine horse
 Carnivora - Felidae
Homotherium sp. Fabrini 1890 cat
 Proboscidea - Gomphotheriidae
Tetralophodon sp. Falconer 1857 gomphothere
ETE occurrence; species: Chorora-type
 Ungulata - Suidae
Suidae indet. Gray 1821 pig
ETE occurrence; species: Suidae
 Ungulata - Hippopotamidae
Hippopotamidae indet. Gray 1821 hippopotamus
ETE occurrence; species: Hippopotamidae
 Ungulata - Giraffidae
"cf. Palaeotraginae indet." = Palaeotragini
"cf. Palaeotraginae indet." = Palaeotragini Pilgrim 1911 giraffe
ETE occurrence; species: cf. Palaeotraginae
 Ungulata - Bovidae
Bovidae indet. Gray 1821 antelope
ETE occurrence; species: Bovidae