Bled Douarah- Upper Faunal Level, lower subunit: Serravallian - Tortonian, Tunisia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Crocodylia
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Crocodylia indet.
(Owen 1842)
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Agrasar 2003 | |||||||||
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Mammalia
- Perissodactyla
- Equidae
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Hipparion primigenium
(von Meyer 1829)
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Forsten 1972 | 8 specimens | ||||||||
| recombined as Hippotherium primigenium | ||||||||||
| localities 3, 5, 27 | ||||||||||
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Mammalia
- Hippopotamidae
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Kenyapotamus sp.
Pickford 1983
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Pickford 1990 | 1 specimen | ||||||||
| locality 5 | ||||||||||
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Actinopteri
- Centropomidae
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Lates sp.
Cuvier 1828
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Greenwood 1972 | 3 specimens | ||||||||
| localities 3, 5 | ||||||||||
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Actinopteri
- Siluriformes
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Siluriformes indet.
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Greenwood 1972 | 9 specimens | ||||||||
| localities 3, 5 | ||||||||||
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Siluriformes informal sp. A
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Greenwood 1972 | 1 specimen | ||||||||
| locality 5 | ||||||||||
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Actinopteri
- Siluriformes
- Clariidae
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Clariidae indet.
Bonaparte 1846
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Greenwood 1972 | 3 specimens | ||||||||
| locality 3 [originally entered as "Clariidae sp."] | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Tunisia | State/province: | Gafsa |
| Coordinates: | 34.0° North, 8.0° East (view map) | ||
| Paleocoordinates: | 33.7° North, 7.5° East | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| Key time interval: | Serravallian - Tortonian | ||
| Age range of interval: | 13.82000 - 7.24600 m.y. ago |
Stratigraphy
| Formation: | Beglia | ||||
| Local section: | Unit 12 | Local bed: | Unit 12 | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Beglia Formation is divided into units. Two fossiliferous levels have been identified. The Upper Faunal Level is subdivided into two units- upper and lower subunits. The age of the formation is estimated to be 12.5-9.5 Ma. No more specific dating is available, however Hipparion is present in both subunits of the Upper Faunal Level.
Mannaï-Tayech 2009: underlying Beglia sands were dated Serravallian to Lower Tortonian, based on their vertebrate faunal contents (Robinson and Black, 1974; Mannaï-Tayech and Otéro, 2005). | |||||
Lithology and environment
| Primary lithology: | "cross stratification",yellow poorly lithified argillaceous,conglomeratic sandstone |
| Includes fossils? | Y |
| Lithology description: Yellow, cross-laminated sands, many clay beds 5-15 cm thick. | |
| Environment: | lacustrine indet. |
| Geology comments: Fossils collected from several localities, thought to be approximately the same age. Localities in the upper subunit of the Upper Faunal Level are 3, 5, 12, 15, and 27. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Disassociated major elements: | some |
| Disassociated minor elements: | some |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | bulk,surface (float),surface (in situ),field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Information on stratigraphic level is only available for some taxa. | |
| Taxonomic list comments:Incomplete, because stratigraphic information is not available for all taxa. See PBDB record # 35277 for complete list of known Beglia Fauna. | |
Metadata
| Also known as: | Bled ed Douarah, yellow sands, upper level | ||
| Database number: | 35280 | ||
| Authorizer: | A. Behrensmeyer | Enterer: | S. Cote |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Subset of collection #: | 35277 | ||
| Created: | 2003-11-24 07:09:20 | Last modified: | 2022-01-25 07:24:43 |
| Access level: | the public | Released: | 2003-11-24 07:09:20 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 9487. | ETE | P. Robinson and C. C. Black. 1969. Note preliminaire sur les vertebres fossiles du Vinodobonien (formation Beglia), du Bled Douarah, Gouvernorat de Gafsa, Tunisie. Notes du Service Geologique Tunisie. Traveaux de Geologie Tunisienne 31(11):67-70 [A. Behrensmeyer/S. Cote/S. Cote] |
Secondary references:
| 9486 | ETE | E. L. Agrasar. 2003. New fossil crocodilians from the Middle/Upper Miocene of Tunisia. Annales de Paleontologie 89:103-110 [A. Behrensmeyer/S. Cote/S. Cote] |
| 9492 | ETE | A.-M. Forsten. 1972. Hipparion primigenium from southern Tunisia. Notes du Service Geologique de Tunisie, Traveaux Geologiques Tunisiennes 35(5):7-28 [A. Behrensmeyer/S. Cote/S. Cote] |
| 9490 | ETE | P. H. Greenwood. 1972. New fish fossils from the late Miocene of Tunisia. Notes du Service Geologique de Tunisie. Travaux de Geologie Tunisienne 37(6):41-72 [A. Behrensmeyer/S. Cote/S. Cote] |
| 37957 | B. Mannai-Tayech. 2009. The lithostratigraphy of Miocene series from Tunisia, revisited. Journal of African Sciences 54:53-61 [M. Uhen/M. Uhen/G. Varnham] | |
| 9494 | ETE | M. Pickford. 1990. Decouverte de Kenyapotamus en Tunisie. Annales de Paleontologie 76(4):277-283 [A. Behrensmeyer/S. Cote/S. Cote] |