El Kohol: Ypresian, Algeria
collected 1980, 1990
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Charales
- Feistiellaceae
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Nitellopsis dutemplei
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Mahboubi et al. 1984 | |||||||||
"N. (T.) dutemplei" | ||||||||||
Nitellopsis aff. thaleri
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Mahboubi et al. 1984 | |||||||||
"N. (T.) aff. thaleri" | ||||||||||
Nitellopsis (Tectochara) dutemplei
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Nitellopsis (Tectochara) aff. thaleri
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Angiospermae
- Rosales
- Ulmaceae
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Celtis sp.
Linnaeus 1753
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Dipnomorpha
- Lepidosirenidae
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Protopterus sp.
Agassiz 1843
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Reptilia
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Alethinophidia indet.
(Nopcsa 1923)
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Aves indet.
(Linnaeus 1758)
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Mesosuchia indet.
Huxley 1875
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Buffetaut 1982 | |||||||||
"ziphodont mesosuchian" | ||||||||||
= Eremosuchus elkoholicus n. gen., n. sp.
Buffetaut 1989
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Buffetaut 1989 | |||||||||
KB-301 - holotype (almost complete right dentary); hypodigm: KA-401 (posterior part of left mandibular ramus); KA-117, 118, 402-404 (teeth); KA-405 & 406 (thoracic vertebrae); KA-407 & 408 (caudal vertebrae), and KA-114 (fibula) | ||||||||||
Mammalia
- Creodonta
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Creodonta indet.
(Cope 1875)
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Mammalia
- Creodonta
- Hyaenodontidae
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Koholia atlasense
Crochet 1988
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Crochet 1988 | |||||||||
Mammalia
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Lipotyphla indet.
(Haeckel 1866)
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synonym of Eulipotyphla | ||||||||||
Mammalia
- Proboscidea
- Numidotheriidae
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Proboscidea indet.
Illiger 1811
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Mahboubi et al. 1984 | |||||||||
new genus | ||||||||||
= Numidotherium koholense n. gen., n. sp.
Mahboubi et al. 1986
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Court and Mahboubi 1993 | |||||||||
Mammalia
- Hyracoidea
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Hyracoidea indet.
(Huxley 1869)
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Mammalia
- Hyracoidea
- Pliohyracidae
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Seggeurius amourensis n. gen., n. sp.
Crochet 1986
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Court and Mahboubi 1993 | |||||||||
Mammalia
- Adapisoriculidae
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Garatherium mahboubii n. gen., n. sp.
Crochet 1984
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Crochet 1984 | |||||||||
Mammalia
- Alphadontidae
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aff. Alphadon sp.
Simpson 1927
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Amphibia
- Temnospondyli
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Neobatrachia indet.
(Reig 1958)
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Actinopteri
- Characiformes
- Characidae
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Characidae indet.
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Ostracoda
- Podocopida
- Candonidae
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? Candona sp.
Baird 1845
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Ostracoda
- Podocopida
- Cytherideidae
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Cytherideidae indet.
Sars 1925
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Gastropoda
- Naticidae
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Ampullaria cf. assermoensis
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spelled with current rank as Natica (Ampullaria) | ||||||||||
Gastropoda
- Hydrobiidae
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Hydrobiidae indet.
Troschel 1857
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Gastropoda
- Thiaridae
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Melanoides sp.
Olivier 1804
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n. sp. | ||||||||||
see common names |
Geography
Country: | Algeria |
Coordinates: | 33.1° North, 1.3° East (view map) |
Paleocoordinates: | 26.1° North, 0.9° West |
Basis of coordinate: | based on nearby landmark |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Ypresian | 10 m.y. bin: | Cenozoic 2 |
Key time interval: | Ypresian | ||
Age range of interval: | 56.00000 - 47.80000 m.y. ago |
Stratigraphy
Stratigraphy comments: "Cuisian" or "late early Eocene" based on charophyte gryogonites (Mahboubi et al. 1984); Ypresian age after Coster et al (2012) |
Lithology and environment
Primary lithology: | marl |
Lithology description: "lacustrine marl" (Court and Mahboubi 1993) | |
Environment: | lacustrine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | taxonomic analysis | Collection dates: | 1980s, 1990 |
Collection method comments: material belongs to the Université d'Oran | |
Taxonomic list comments:fauna includes "a lungfish, a crocodilian, and various mammals (hyracoids and a form related to Barytherium)" according to Buffeteaut 1982 |
Metadata
Also known as: | Brezina | ||
Database number: | 71984 | ||
Authorizer: | J. Alroy, M. Uhen, P. Coster, P. Mannion, P. Holroyd | Enterer: | J. Alroy, P. Coster, P. Mannion, P. Holroyd, M. Uhen |
Modifier: | P. Mannion | Research group: | vertebrate |
Created: | 2007-05-18 21:14:55 | Last modified: | 2016-06-30 06:58:15 |
Access level: | the public | Released: | 2007-05-18 21:14:55 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
43794. | M. Mahboubi, R. Ameur, J.-Y. Crochet and J.-J. Jaeger. 1984. Implications Paleobiogeographiques de la decouverte d'une nouvelle localite Eocene a vertebres continentaux en Afrique Nord-Occidentale: El Kohol (Sud-Oranis, Algerie). Geobios 17(5):625-629 [M. Uhen/M. Uhen/P. Wagner] |
Secondary references:
59620 | J. Benoit, J.-V. Crochet, M. Mahboubi, J.-J. Jaeger, M. Bensalah, M. Adaci, and R. Tabuce. 2016. New material of Seggeurius amourensis (Paenungulata, Hyracoidea), including a partial skull with intact basicranium. Journal of Vertebrate Paleontology 36(1):e1034358:1-18 [P. Mannion/P. Mannion/P. Mannion] | |
24347 | E. Buffetaut. 1982. A ziphodont mesosuchian crocodile from the Eocene of Algeria and its implications for vertebrate dispersal. Nature 300:176-1786 [J. Alroy/J. Alroy] | |
46912 | E. Buffetaut. 1989. A new ziphodont mesosuchian crocodile from the Eocene of Algeria. Palaeontographica 208:1-10 [P. Mannion/P. Mannion] | |
47472 | P. Coster, M. Benammi, M. Mahboubi, R. Tabuce, M. Adaci, L. Marivaux, M. Bensalah, S. Mahoubi, A. Mhboubi, F. Mebrouk, C. Mameri and J.-J. Jaeger. 2012. Chronology of the Eocene continental deposits of Africa: Magnetostratigraphy and biostratigraphy of the El Kohol and Glib Zegdou Formations, Algeria. GSA Bulletin 124(9/10):1590-1606 [M. Uhen/M. Uhen] | |
29524 | N. Court and M. Mahboubi. 1993. Reassessment of Lower Eocene Seggeurius amourensis: aspects of primitive dental morphology in the mammalian order Hyracoidea. Journal of Paleontology 67(5):889-893 [J. Alroy/J. Alroy/J. Alroy] | |
57485 | J. Y. Crochet. 1984. Garatherium mahboubii nov. gen., nov. sp., marsupial de l'Eocene inférieur d'El Kohol (Sud-Oranais, Algérie). Annales de Paléontologie 70:275-294 [P. Coster/P. Coster/P. Mannion] | |
57658 | J. Y. Crochet. 1988. Le plus ancien Créodonte africain: Koholia atlasense nov. gen., nov. sp. (Eocène inférieur d’El Kohol, Atlas saharien, Algérie). Comptes Rendus de l’Académie des Sciences, Paris 307:1795-1798 [P. Coster/P. Coster/M. Uhen] | |
62975 | G. Cuny, J.-J. Jaeger, M. Mahboubi and J.-C. Rage. 1990. Les plus anciens serpents (Reptilia, Squamata) connus. Mise au point sur l'âge géologique des serpents de la partie moyenne du Crétacé. Comptes rendus des séances de l'Académie des Sciences 311:1267-1272 [P. Barrett/T. Cleary] | |
24346 | M. Mahboubi, R. Ameur, J. Y. Crochet and J. J. Jaeger. 1984. Earliest known proboscidean from the early Eocene of north-west Africa. Nature 308:543-544 [J. Alroy/J. Alroy] |