Wadi Ash Shaykh - Tmed el Ksour Member, Zallha Formation: Priabonian, Libya
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Subbotinae cf. eocaena
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Gastropoda
- Cypraeidae
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Gisortia (Vicetia) stefanini
(Negri 1934)
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| original and current combination Gisortia (Vicetia) stefaninii | |||||||
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Gastropoda
- Strombidae
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Rostellaria (Amplogladius) turgida
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| synonym of Tibia | |||||||
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Rostellaria (Hippocerne) columbaria
Lamarck 1803
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Bivalvia
- Ostreida
- Malleidae
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Vulsella crispata
Fischer 1871
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| recombined as Vulsella (Vulsella) crispata | |||||||
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Anthozoa
- Scleractinia
- Placophylliidae
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Placophyllia bartai
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Globigerinidae
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Globorotaloides cf. sutari
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Hedbergellidae
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Turborotalia increbenscens
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| original and current combination Globorotalia (Turborotalia) | |||||||
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Globothalamea
- Rotaliida
- Gavelinellidae
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Gyroidina cf. complanata
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| see common names | |||||||
Geography
| Country: | Libya |
| Coordinates: | 30.3° North, 13.3° East (view map) |
| Paleocoordinates: | 26.4° North, 10.0° East |
| Basis of coordinate: | stated in text |
| Geographic resolution: | local area |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
| Key time interval: | Priabonian | ||
| Age range of interval: | 37.71000 - 33.90000 m.y. ago |
Stratigraphy
| Formation: | Zallah | Member: | Tmed el Ksour | ||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: The name Zallah Formation was proposed to include the units Tmed El Ksour and Graret ek Jifa members of the Wadi Tamet Formation. The Tmed el Ksour Mbr is a persistent unit and has a uniform lithology along the western margin of the Sirte Basin. It is composed predominantly of chalky limestones to chalky dolomites with chert beds, and celestite and anhydrite layers. The member is 27-40 m (89-131 ft) in the type area. It is assigned a Priabonian age on the basis of paleotologic evidence. | |||||
Lithology and environment
| Primary lithology: | lithified cherty/siliceous "limestone" |
| Secondary lithology: | cherty/siliceous dolomite |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: Chalky limestones to chalky dolomites with chert beds, and celestite and anhydrite layers. | |
| Environment: | carbonate indet. |
| Geology comments: No paleoenvironmental data provided. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
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 only mollusca. | |
Metadata
| Database number: | 42136 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2004-07-24 15:05:11 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2004-07-24 15:05:11 |
| 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] |