East Turkana - Area 130- AKB Squares 0201 (Pliocene of Kenya)

Where: Kenya (4.2° N, 36.4° E: paleocoordinates 4.0° N, 36.1° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Upper Burgi Member (Koobi Fora Formation), Late/Upper Pliocene (3.6 - 2.6 Ma)

• Minimum age= 1.88 Ma (KBS Tuff, K/Ar and Ar/Ar dating).

•Maximum age based on faunal and geological data from the Upper Burgi indicating that it is no older than 2.0 Ma

•Approximately at the same stratigraphi level as KNM-ER 1470 (hominid skull)

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial-deltaic; poorly lithified, silty sandstone

• An actively aggrading margin of the deltaic complex. Lack of evidence for surface exposure and root-bioturbation suggests generally subaqueous conditions.
• Evenly stratified sandy silts, silty clays, and medium-grained flagstone sands. Sands are generally clean and rich in biotite. Coarser, more poorly sorted sediment occurs in laterally restricted lenses.Cross-stratification is often well-developed in the medium- to fine-grained sandstones.

Size class: macrofossils

Preservation: original phosphate, replaced with calcite

Collection methods: surface (float), surface (in situ), mechanical,

• All bone fragments were collected 10 x 10 m squares 20 m apart (on a grid) and sorted into identifiable and unidentifiable at the sampling site. Identifiable fragments were bagged and taken to the Kenya National Museum for identification. "Good" specimens were incorporated into the taxonomic collections at KNM, the rest were stored in the basement of KNM.

Primary reference: A. K. Behrensmeyer. 1975. The Taphonomy and Paleoecology of Plio-Pleistocene Vertebrate Assemblages East of Lake Rudolf, Kenya. Bulletin of the Museum of Comparative Zoology 146(10):473-578 [A. Behrensmeyer/S. Cote/S. Cote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 32116: authorized by Anna Behrensmeyer, entered by Suzanne Cote on 05.06.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• Compiled from orginal unpublished data (Behrensmeyer 2003).
unclassified
  -
Vertebrata indet. Lamarck 1801
Pisces
  -
"Pisces indet." = Osteichthyes
"Pisces indet." = Osteichthyes Huxley 1880 bony fish
Actinopteri
 Perciformes - Latidae
Lates sp. Cuvier 1828 lates
 Teleostei -
 Siluriformes - Ariidae
? Ariidae indet. Berg 1958 Ariid catfish
 Siluriformes - Clariidae
Clarias sp. Scopoli 1777 catfish
 Siluriformes - Bagridae
Bagrus sp. Bosc 1816 naked catfish
Reptilia
 Testudines -
"Testudines indet." = Testudines, "Chelonia indet." = Testudines
"Testudines indet." = Testudines Batsch 1788 turtle
"Chelonia indet." = Testudines Batsch 1788 turtle
 Testudines - Trionychidae
Trionyx sp. Geoffroy Saint-Hilaire 1809 softshell turtle
 Crocodylia - Crocodylidae
Euthecodon sp. Fortau 1920 crocodile
Crocodylus indet. Laurenti 1768 crocodile
Mammalia
  -
Mammalia indet. Linnaeus 1758 mammal
 Primates - Cercopithecidae
Theropithecus sp. Geoffroy 1843 gelada
 Rodentia - Hystricidae
Hystrix sp. Linnaeus 1758 porcupine
 Perissodactyla - Equidae
cf. Equidae indet. Gray 1821 horse
Hipparion sp. de Christol 1832 hipparionine horse
 Proboscidea - Elephantidae
Elephantidae indet. Gray 1821 elephant
 Ungulata - Suidae
Suidae indet. Gray 1821 pig
Kolpochoerus sp. van Hoepen and van Hoepen 1932 pig
Phacochoerus sp. Cuvier 1826 warthog
 Ungulata - Hippopotamidae
Hippopotamidae indet. Gray 1821 hippopotamus
 Ungulata - Bovidae
Bovidae indet. Gray 1821 antelope
Syncerus sp. Hodgson 1847 African buffalo
Tragelaphini indet. Blyth 1863 antelope
Alcelaphini indet. Brookes 1876 antelope
Damaliscus sp. Sclater and Thomas 1894 antelope
Reduncini indet. Knottnerus-Meyer 1907 antelope
Kobus sigmoidalis Arambourg 1941 antelope
Gazella sp. Blaineville 1816 gazelle
Osteichthyes
 Ceratodontiformes - Lepidosirenidae
Protopterus sp. Agassiz 1843 african lungfish