Shungura Formation Explained

Shungura Formation
Type:Geological formation
Age:Piacenzian-Gelasian
Period:Gelasian
Prilithology:Sandstone, siltstone
Otherlithology:Claystone, tuff
Coordinates:5.1°N 36°W
Paleocoordinates:5.8°N 36.1°W
Unitof:Omo Group
Underlies:Kalam Formation
Overlies:Mursi Formation
Extent:Omo Subbasin
 Turkana Basin

The Shungura Formation is a stratigraphic formation located in the Omo river basin in Ethiopia. It dates to the Late Pliocene to Early Pleistocene. Oldowan tools have been found in the formation, suggesting early use of stone tools by hominins. Among many others, fossils of Panthera were found in Member G of the formation.[1] [2]

Geology

The formation comprises sandstones, siltstones, claystones and tuff, deposited in a fluvial to deltaic lacustrine environment.

Paleobiota

Fossil content

Among many others, the following fossils have been reported from the formation:[3] [4] [5] [6] [7] [8] [9] [2] [10]

Mammals

Afrotheres

Proboscideans
Proboscideans of the Shungura Formation
Taxa Species Locality Material Notes Images
LoxodontaL. adauroraMember OExtinct subspecies of African elephants.
L. exoptataMember O
Palaeoloxodon reckiP. r. shungurensis Member A, B, C, D, and E.An extinct elephant species native to Africa.

Artiodactyls

Bovids
Bovids of the Shungura Formation
Taxa Species Locality Material Notes Images
AepycerosA. shunguraeMembers B, C, D, E, F, and GExtinct relative of modern impala.
AntidorcasA. reckiMembers B, C, D, E, F, G, and H.Extinct relative of modern springbok
BeatragusB. antiquusMember G.Extinct relative of modern Hirola.
GazellaG. praethomsoniMembers F, G, and H.An early relative of gazelle.
Kobus K. ancystroceraMember B, C, E, G, and J.
K. ellipsiprymnusMember G, J, and K.A waterbuck.
K. oricornisExtinct relatives of the Kobus family.
K. sigmoidalisMembers D, E, F, and G.
MegalotragusM. sp.An alcelaphine.
MenelikiaM. lyroceraMembers C, E, F, G, H, I, and J.An extinct reduncinae artiodactyl.
PelorovisP. sp.
ParmulariusP. altidensMembers G and H.An extinct relative of alcelaphine.
ReduncaR. sp.A reedbuck.
SyncerusS. cf. acoelotus Members B, C, D, E, F, and G.A cape buffalo.
TragelaphusT. gaudryiMember F.Relative of spiral horned anterlope.
T. nakuae
Camelids
Camels of the Shungura Formation
Taxa Species Locality Material Notes Images
CamelusC. grattardi[13] Lower member G (G4-G13).Distal humerus L1–68–76, maxilla fragment with heavily worn P4–M2 (Omo 75S-70–956); same individual as Omo 75–69–2222, M3.Extinct relative of Camels.
CamelusC. sp.
Giraffidae
Giraffids of the Shungura Formation
Taxa Species Locality Material Notes Images
GiraffaG. gracilisMembers D, E, F, and G.Extinct relative of modern giraffe.
G. pygmaeaMembers G.
G. jumae
SivatheriumS. maurusiumMember F.An extinct giraffid.
Hippopotamidae
Hippopotamids of the Shungura Formation
Taxa Species Locality Material Notes Images
HexaprotodonH. protoamphibiusAn extinct hippopotamid relative.
H. shungurensisMember CA partial skull (calvarium and mandible)
HippopotamusH. protoamphibius
Suidae
Suidae of the Shungura Formation
Taxa Species Locality Material Notes Images
KolpochoerusK. limnetesMembers E, D, G, F, and H.An omnivorous pig.
MetridiochoerusM. jacksoniMembers E, F, and G.A giant warthog.
M. modestusMembers G
NotochoerusN. euilusMembers A, C.A tetraconodontinae suid.
N. scotti[14] Members B, C, and H
NyanzachoerusN. kanamensisMembers A, BA tetraconodontinae suid.
N. jaegeriMember A

Carnivora

Carnivorans of the Shungura Formation
Taxa Species Locality Material Notes Images
Enhydriodon[15] E. omoensis[16] Member C.Right femur (L 183–14), fragmented mandible, and lower dentition.A lion-sized river otter.
DinofelisD. petteriMember A, B, C, D, E, F, and G.Damaged cranium skull and dentition fragments, OMO 1–768–3.A sabertooth cat.
D. sp.[17] Member A, B, C, D, E, F, and G.Postcranial skulls (OMO 28-67-1075 from Member B), craniodental, and dentition fragments.
HelogaleH. hirtulaExtinct species of Mongoose family.
H. kitafe
HomotheriumH. aethiopicumMembers C and G.

Chiroptera

Bats of the Shungura Formation
Taxa Species Locality Material Notes Images
HipposiderosH. kaumbuluiMember F.A Roundleaf bat.
TaphozousT. abitusMember F.Extinct relative of tomb bats and sheath-tailed bats.

Eulipotyphla

Eulipotyphlas of the Shungura Formation
Taxa Species Locality Material Notes Images
CrociduraC. aithiops
SuncusS. haesaertsi
S. cf. lixus
S. shungurensis

Perissodactyls

Chalicotheres
Rhinocerotidae
Rhinocerotidaes of the Shungura Formation
Taxa Species Locality Material Notes Images
CeratotheriumC. simumMember A, B, C, D, E, J, K, L, and O.Multiple dentition, cranium, and postcranial skeletion.A white rhinoceros.
DicerosD. bicornisMember A, B, D, L, K, and O.Complete Skull and Molars.A black rhinoceros.
Equidae
Equids of the Shungura Formation
Taxa Species Locality Material Notes Images
EquusE. oldowayensis[19] Members F, G, H, I, and J.Jawbone mandible with complete dentition.An Olduvai zebra.
EurygnathohippusE. libycumMembers C, E, F, G, and L.A Hipparionine horse.
HipparionH. sitifense[20] Members A, B, C, D, E, F, and GMultiple cheek teeth and fragmented dentition.Relatives of early horses.

Primates

Cercopithecidae
Cercopithecids of the Shungura Formation
Taxa Species Locality Material Notes Images
DinopithecusD. sp.[21] [22]
ParacolobusP. mutiwaMember C, E, and G.
RhinocolobusR. turkanaensisMember C, E, and G.[23]
TheropithecusT. brumptiMembers B, C, D, E, F, and G.Extinct relative of Gelada Baboons.
T. oswaldiMembers D, E, F, G, H, I, J, K, and L.
Hominins
Homonids of the Shungura Formation
Taxa Species Locality Material Notes Images
AustralopithecusA. sp.
ParanthropusP. aethiopicusMembers C, D, E, and F.
P. boiseiMembers G and K.

Rodents

Rodents of the Shungura Formation
Taxa Species Locality Material Notes Images
AethomysA. deheinzelinia rock mouse.
ArvicanthisA. sp.
AcomysA. sp.
GerbillusG. sp.
HeterocephalusH. atikoi
JaculusJ. orientalis
MastomysM. minor
ParaxerusP. ochraceus
PelomysP. sp.
SaidomysS. sp.
TateraT. sp.
XerusX. sp.

Fish

Fish of the Shungura Formation
Taxa Species Locality Material Notes Images
AuchenoglanisA. sp.Members F3 and G24.Omo 199 1973-1278 and Omo 215 1973–2556, two pectoral spines, the former lacking the distalmost tip.
ClariasC. sp.
GymnarchusG. sp.
PolypterusP. bichirUpper Member A.An association of several rows of rhombic ganoid scales, Omo 40–4343.A Nile Bichir.
SindacharaxS. greenwoodiRelatives of African tetras.
S. omoensisUpper Member A.Omo 128–72–22, Partial premaxilla (right) broken off lateral to the third outer tooth and second inner tooth, with first and second inner teeth in situ, and tooth bases visible of the first, second, and third outer teeth.
SynodontisS. frontosusrelatives of Mochokid catfishes
S. schall

See also

References

Bibliography

Further reading

Notes and References

  1. Sabol, 2011, p.230
  2. Boaz, N. T., Howell, F. C., & McCrossin, M. L. (1982). Faunal age of the Usno, Shungura B and Hadar Formations, Ethiopia. Nature, 300(5893), 633–635. https://doi.org/10.1038/300633A0
  3. http://www.fossilworks.org/cgi-bin/bridge.pl?a=collectionSearch&collection_no=21986 ETE Locality 807, Omo - member G
  4. http://www.fossilworks.org/cgi-bin/bridge.pl?a=collectionSearch&collection_no=22039 ETE Locality 860, Omo - member C
  5. http://www.fossilworks.org/cgi-bin/bridge.pl?a=collectionSearch&collection_no=21668 ETE Locality 486, Omo - O.75
  6. http://www.fossilworks.org/cgi-bin/bridge.pl?a=collectionSearch&collection_no=21634 ETE Locality 452, Omo - O.81, P.928
  7. http://www.fossilworks.org/cgi-bin/bridge.pl?a=collectionSearch&collection_no=21545 ETE Locality 363, Omo - L.28
  8. http://www.fossilworks.org/cgi-bin/bridge.pl?a=collectionSearch&collection_no=22014 ETE Locality 835, Omo - member G5
  9. Stewart, Kathlyn & Murray, Alison. (2008). Fish remains from the Plio-Pleistocene Shungura Formation, Omo River basin, Ethiopia. Geobios - GEOBIOS-LYON. 41. 283-295. 10.1016/j.geobios.2007.06.004.
  10. Sillen, A. (1986). Biogenic and Diagenetic Sr/Ca in Plio-Pleistocene Fossils of the Omo Shungura Formation. Paleobiology, 12(3), 311–323. http://www.jstor.org/stable/2400437
  11. Wesselman H. B. (1984) The Omo Micromammals: Systematics and Paleoecology of Early Man Sites from Ethiopia, Contributions to Vertebrate Evolution 17
  12. Skinner, J. D.; Chimimba, Christian T. (2005). The Mammals of the Southern African Sub-region. Cambridge University Press. p. 41. ISBN 9781107394056. Retrieved 20 September 2022.
  13. John Rowan, Pietro Martini, Likius Andossa, Gildas Merceron, Jean-Renaud Boisserie. New Pliocene remains of Camelus grattardi (Mammalia, Camelidae) from the Shungura Formation, Lower Omo Valley, Ethiopia, and the evolution of African camels. Historical Biology, 2018, 31 (9), pp.1123-1134. ⟨10.1080/08912963.2017.1423485⟩. ⟨hal-02100346⟩
  14. White, T. D., & Suwa, G. (2004). A New Species of Notochoerus (Artiodactyla, Suidae) from the Pliocene of Ethiopia. Journal of Vertebrate Paleontology, 24(2), 474–480. http://www.jstor.org/stable/4524733
  15. GROHÉ C., UNO K. & BOISSERIE J.-R. 2022. — Lutrinae Bonaparte, 1838 (Carnivora, Mustelidae) from the Plio-Pleistocene of the Lower Omo Valley, southwestern Ethiopia: systematics and new insights into the paleoecology and paleobiogeography of the Turkana otters. Comptes Rendus Palevol 2022 (30): 681-705. https://doi.org/10.5852/cr-palevol2022v21a30
  16. Grohé, Camille & Uno, Kevin & Boisserie, Jean-Renaud. (2022). Lutrinae Bonaparte, 1838 (Carnivora, Mustelidae) from the Plio-Pleistocene of the Lower Omo Valley, southwestern Ethiopia: systematics and new insights into the paleoecology and paleobiogeography of the Turkana otters. 21. 681-705. 10.5852/cr-palevol2022v21a30.
  17. Werdelin, Lars & Lewis, Margaret. (2001). A revision of the genus Dinofelis (Mammalia, Felidae). Zoological Journal of the Linnean Society. 132. 147 - 258. 10.1111/j.1096-3642.2001.tb02465.x.
  18. Denis Geraads. Faunal Change in Eastern Africa at the Oldowan – Acheulean Transition. The Emergence of the Acheulean in East Africa and Beyond: Contributions in Honor of Jean Chavaillon,In press. ffhalshs-01819105
  19. Gilbert, William & Bernor, Raymond. (2009). Equidae. 10.1525/california/9780520251205.003.0006.
  20. Eisenmann, Véra. (1976). Equidae from the Shungura formation. Earliest Man and Environments in the Lake Rudolf Basin. 225-233.
  21. Jablonski, Nina & Leakey, Meave & Anton, Mauricio. (2008). Systematic paleontology of the cercopithecines. The Fossil Monkeys. 6. 103-300.
  22. Gilbert, C. C. (2013). Cladistic analysis of extant and fossil African papionins using craniodental data. Journal of Human Evolution, 64(5), 399–433. https://doi.org/10.1016/J.JHEVOL.2013.01.013
  23. Pallas, L., Daver, G., Merceron, G., & Boisserie, J. (2023, February 3). Postcranial anatomy of colobines (Mammalia, Primates) from the Plio-Pleistocene Omo Group deposits (Shungura Formation and Usno Formation, 1967-2018 field campaigns, Lower Omo Valley, Ethiopia). https://doi.org/10.31233/osf.io/bwegt
  24. Werdelin, Lars & Partridge, Timothy & Seiffert, Erik & Feakins, Sarah & Demenocal, Peter & Jacobs, Bonnie & Gunnell, Gregg & Holroyd, Patricia & Asher, Robert & Sanders, William & Rasmussen, David & Gutiérrez, Mercedes & Domning, Daryl & Winkler, Alisa & Avery, D. Margaret & Godinot, Marc & Harrison, Terry & Godfrey, Laurie & Jablonski, Nina & Cerling, Thure. (2010). Cenozoic Mammals of Africa. 10.1525/california/9780520257214.001.0001. Page: 344-345
  25. Joleaud ML (1920) On the presence of a Gavialide of the genus Tomistoma in the freshwater Pliocene of Ethiopia, Comptes Rendus de l'Académie des Sciences 70, 816-818