Locherangan, west of Lake Turkana (Miocene of Kenya)

Also known as Loncherangan

Where: Kenya (3.8° N, 35.7° E: paleocoordinates 2.6° N, 33.5° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Burdigalian (20.4 - 16.0 Ma)

• from a "13.5 m" unit at the top of the local sequence

•there is an average K-Ar date of 17.5 +/- 0.3 Ma for five determinations on "two feldspar separates" coming from the "upper tuff" in the sequence, which is "slightly" below the fossiliferous unit

• group of beds-level stratigraphic resolution

Environment/lithology: "channel"; poorly lithified claystone and lithified, conglomeratic sandstone

• the sandstones overly a lacustrine unit but were "deposited by streams"
• "poorly consolidated red-brown claystones that are interbedded with red-brown consolidated conglomeratic sandstones. The fine grained deposits again contain fish bones, and mammal bones were noted in situ in the fine sandstone interbeds"

Size class: macrofossils

Collected by W. Anyonge, F. Brown in 1986, 1987

Collection methods: bulk, surface (float), sieve,

• "All the fossils were recovered from either the surface or from sieving" and "A small test excavation... failed to find additional specimens in situ"

•material is reposited in the KNM (National Museums of Kenya) collection

Primary reference: W. Anyonge. 1991. Fauna from a new Lower Miocene locality west of Lake Turkana, Kenya. Journal of Vertebrate Paleontology 11(3):378-390 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 83629: authorized by John Alroy, entered by John Alroy on 24.08.2008, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Primates - Dendropithecidae
Simiolus enjiessi Leakey and Leakey 1987 monkey
 Primates - Proconsulidae
Afropithecus turkanensis Leakey and Leakey 1986 ape
 Perissodactyla - Rhinocerotidae
Rhinocerotidae indet. Gray 1821 rhinoceros
 Artiodactyla - Suidae
Nguruwe cf. kijivium Pickford 1986 pig
Kenyasus rusingensis Pickford 1986 pig
 Artiodactyla - Anthracotheriidae
Hyoboops cf. moneyi, "Masritherium aequatoralis" = Masritherium aequatorialis
Hyoboops cf. moneyi Fourtau 1918 anthracothere
"Masritherium aequatoralis" = Masritherium aequatorialis MacInnes 1951 anthracothere
 Artiodactyla -
Diamantohyus africanus Stromer 1926 ruminant
 Artiodactyla - Tragulidae
Dorcatherium sp. Kaup 1839 chevrotain
Dorcatherium pigotti Whitworth 1958 chevrotain
"Dorcatherium parvum" = Afrotragulus parvus Whitworth 1958 chevrotain
 Artiodactyla - Giraffidae
Canthumeryx sirtensis Hamilton 1973 giraffe
 Carnivora - Nimravidae
Afrosmilus africanus Andrews 1914 false sabre-tooth
 Proboscidea - Gomphotheriidae
Gomphotheriidae indet. Hay 1922 gomphothere
Reptilia
 Crocodylia - Crocodylidae
Brochuchus sp. Conrad et al. 2013 crocodile
KNM-LC 17661, 17662, 18458, 18460