Lokone Hills 13 (Oligocene of Kenya)

Also known as LOK 13

Where: Kenya (2.2° N, 35.6° E: paleocoordinates 0.2° S, 31.8° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Lokone Sandstone Formation, Late/Upper Oligocene (28.4 - 23.0 Ma)

• early late Oligocene

• bed-level stratigraphic resolution

Environment/lithology: lacustrine deltaic; lithified, fine-grained sandstone

• shallow lacustrine environment close to the shoreline and submitted to dessiccation as shown by frequent mud-crack features
• fine-grained, mollusc-rich sandstone forming several decimeter-thick slabs

Size classes: macrofossils, mesofossils

Collected by Lokone Paleontological Research Project in November–December 2007

Primary reference: S. Ducrocq, J.-R. Boisserie, J.-J. Tiercelin, C. Delmer, G. Garcia, M. F. Kyalo, M. G. Leakey, L. Marivaux, O. Otero, S. Peigné, P. Tassy and F. Lihoreau. 2010. New Oligocene vertebrate localities from Northern Kenya (Turkana basin). Journal of Vertebrate Paleontology 30(1):293-299 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 174672: authorized by Philip Mannion, entered by Philip Mannion on 23.11.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Sindacharax sp.4
KNM LH 69326
? Distichodus sp.4
KNM LH 69327
Actinopteri
 Teleostei -
Teleostei indet.
KNM LH 69330
 Cichliformes - Cichlidae
Cichlidae indet. Heckel 1840 cichlid
KNM LH 69329
 Siluriformes - Claroteidae
 Characiformes - Alestidae
Alestidae indet.
KNM LH 69325
Hydrocynus sp.4 Cuvier 1816
KNM LH 69324
 Osteoglossiformes - Gymnarchidae
Gymnarchus sp.4 Cuvier 1829 aba knifefish
 Osteoglossiformes - Osteoglossidae
Heterotis sp.4 Rüppell 1828 African arowana
Cladistia
 Polypteriformes - Polypteridae
Polypterus sp.4 Lacépède 1803 bichir
KNM LH 69321
Reptilia
 Testudines - Podocnemidae
cf. Erymnochelys sp.4 Baur 1888 sideneck turtle
 Crocodylia - Crocodylidae
Crocodylidae indet.4 Cuvier 1807 crocodile
 Squamata - Lacertidae
Lacertidae indet.4 Bonaparte 1831 squamates
KNM LH 69312
 Squamata -
Serpentes indet.4 Linnaeus 1758 snake
KNM LH 69311
Mammalia
 Primates - Parapithecidae
Lokonepithecus manai n. gen. n. sp.1
Lokonepithecus manai n. gen. n. sp.1 Ducrocq et al. 2011 monkey
KNM-LH 49872 - holotype (a fragmentary right lower jaw); referred material: KNM-LH 49873 (an isolated right M3)
 Rodentia -
Turkanamys hexalophus n. gen. n. sp.3
Turkanamys hexalophus n. gen. n. sp.3 Marivaux et al. 2012 rodent
KNM LH 47895
 Proboscidea - Palaeomastodontidae
Palaeomastodontidae indet. Andrews 1906 proboscidean
 Ungulata -
Epirigenys lokonensis2 Lihoreau et al. 2015 even-toed ungulate
KNM-LH 11633-11647 and 11650 (originally ID-ed as aff. Bothriogenys)
 Hyaenodonta - Hyainailouridae
Apterodon aff. gaudryi Fischer 1880 eutherian