Bir Zaltan - Marada Formation: Aquitanian - Burdigalian, Libya
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Euthecodon sp.
Fortau 1920
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Reptilia
- Testudines
- Podocnemididae
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Podocnemis aegyptica
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Reptilia
- Testudines
- Trionychidae
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Trionyx sp.
Geoffroy Saint-Hilaire 1809
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Mammalia
- Climacoceratidae
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Prolibytherium magnieri
Arambourg 1961
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Mammalia
- Proboscidea
- Gomphotheriidae
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Mastodon cf. angustidens
Cuvier 1806
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Echinoidea
- Echinolampadoida
- Echinolampadidae
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Echinolampas orlebari
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Bivalvia
- Pectinida
- Placunidae
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Placuna miocenica
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Bivalvia
- Pectinida
- Pectinidae
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Pecten cf. fuschi
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Chlamys submalvinae
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Elphidiidae
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Elphidium crispum
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Elphidium minutum
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Globothalamea
- Rotaliida
- Discorbidae
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Discorbis discoides
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Tubothalamea
- Miliolida
- Soritidae
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Sorites sp.
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Homotrematidae
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Homotrema sp.
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Rotaliidae
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Rotalia calcar
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Ammonia beccarii
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Pararotalia sp.
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Geography
| Country: | Libya |
| Coordinates: | 29.2° North, 19.2° East (view map) |
| Paleocoordinates: | 28.2° North, 17.9° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | local area |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Aquitanian - Burdigalian | 10 m.y. bin: | Cenozoic 5 |
| Key time interval: | Aquitanian - Burdigalian | ||
| Age range of interval: | 23.03 - 15.98 m.y. ago |
Stratigraphy
| Formation: | Marada | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: The Marada Formation is divided into two members; a lower Qarat Jahannam Member and an upper Ar Rahlah Member. The type section of the Qarat Jahannam Member has a thickness of 123 m (404 ft). The member is made up mostly of green and yellow sandstones with minor green shales, calcareous sandstones, limestones, dolomites, and gypsum. Assigned an Aquitanian-Burdigalian age. | |||||
Lithology and environment
| Primary lithology: | dolomitic,gypsiferous,green,yellow lithified calcareous sandstone |
| Secondary lithology: | green "shale" |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: Green and yellow sandstones with minor green shales, calcareous sandstones, limestones, dolomites, and gypsum. | |
| Environment: | carbonate indet. |
| Geology comments: No paleoenvironmental data provided. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,microfossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
| Collection method comments: No detailed collection data reported. | |
| Taxonomic list comments:Collection based on taxa listed in text as typical of formation. Includes molluscs, echinoderms and forams. Page 286 | |
Metadata
| Database number: | 42130 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2004-07-24 14:20:48 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | group members | Released: | 2005-07-24 14:20:48 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 11199. | E. E. Tawadros. 2001. Geology of Egypt and Libya 1-468 [A. Miller/A. Hendy/M. Clapham] |