Qararat Al Jifah Member, Wadi Thamat Formation: Priabonian, Libya
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Dictyoplanus douvillei
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Hemipategus sp.
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Ostracoda
- Podocopida
- Leguminocythereidae
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Leguminocythereis sp.
Howe and Law 1936
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Ostracoda
- Podocopida
- Hemicytheridae
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Hermanites sp.
Puri 1955
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Occultocythereis sp.
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Ostracoda
- Podocopida
- Bairdiidae
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Bairdia sp.
M'Coy 1844
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Gastropoda
- Strombidae
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Rostellaria mokattomensis
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| synonym of Tibia | |||||||
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea reili
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Ostrea meili
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Ostrea cymbula
Lamarck 1806
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Ostrea multicostata
Deshayes 1832
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| recombined as Cubitostrea multicostata | |||||||
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Bivalvia
- Ostreida
- Gryphaeidae
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Ostrea exogyroides
Roemer 1835
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| synonym of Praeexogyra dubiensis | |||||||
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Bivalvia
- Ostreida
- Malleidae
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Vulsella crispata
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Bivalvia
- Pectinida
- Anomiidae
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Carolia lefevreli
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Carolia cymabla
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Carolia placunoides
Cantraine 1838
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Echinoidea
- Echinolampadoida
- Echinolampadidae
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Echinolampas sp.
Gray 1825
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Echinoidea
- Spatangoida
- Schizasteridae
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Schizaster aff. batheri
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Tritaxiidae
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Tritaxia sp.
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Rotaliidae
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Pararotalia inermis
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Siphogenerinoididae
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Sagrina sp.
d'Orbigny 1839
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Tubothalamea
- Miliolida
- Hauerinidae
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Quinqueloculina sp.
d'Orbigny 1826
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Lituolida
- Lituolidae
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Clavulina sp.
d'Orbigny 1826
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Globothalamea
- Rotaliida
- Discorbidae
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Discorbis cf. finlayi
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Globothalamea
- Rotaliida
- Nonionidae
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Nonionella sp.
Cushman 1926
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Globothalamea
- Rotaliida
- Cibicididae
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Cibicides sp.
Monfort 1808
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Elphidiidae
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Elphidium sp.
Monfort 1808
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Nodosariata
- Polymorphinida
- Polymorphinidae
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Ramulina sp.
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Nodosariata
- Nodosariida
- Nodosariidae
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Tristix sp.
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= "Tristix" sp.
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Kiessling 2003 | ||||||
| see common names | |||||||
Geography
| Country: | Libya |
| Coordinates: | 30.0° North, 17.7° East (view map) |
| Paleocoordinates: | 25.8° North, 14.2° East |
| Basis of coordinate: | stated in text |
| Geographic resolution: | basin |
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: | Wadi Thamat | Member: | Qararat Al Jifah | ||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: LITHOSTRATIGRAPHIC RELATIONSHIPS: From the Qararat Al Jifah Mbr of the Wadi Thamat Fm, which overlies the Thmed Al Qusur (Priabonian) and is overlain by the Umm ad Dahiy Fm (Rupelian). AGE: Priabonian, on the basis of microfossil and macrofossil biostratigraphy. THICKNESS: averages 128 m across its range. | |||||
Lithology and environment
| Primary lithology: | shelly/skeletal,brown,white,yellow lithified "limestone" |
| Secondary lithology: | gypsiferous,green,yellow lithified argillaceous marl |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: GENERAL LITHOLOGY: Light yellow to creamy white organodetrital limestone, alternating with subordinate greenish yellow clay-marls, occasionally gypsiferous. LITHIFICATION: Lithified, not stated, but apparent from facies description. | |
| Environment: | carbonate indet. |
| Geology comments: ENVIRONMENT: Shallow marine carbonate.
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Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,microfossils |
Collection methods and comments
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: COLLECTORS: Not stated, possibly multiple collectors. REPOSITORY: Unknown.
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| Taxonomic list comments:COVERAGE: Limited, but including bivalvia, gastropoda, echinoids, algae, and foraminifera. NOMENCLATURE: Somewhat antiquated nomenclature, but identified to species and subgenus resolution. | |
Metadata
| Database number: | 77237 | ||
| Authorizer: | A. Hendy, W. Kiessling | Enterer: | A. Hendy, W. Kiessling |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2008-01-06 21:37:19 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2008-01-06 21:37:19 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 26106. | M. F. Megerisi and V. D. Mamgain. 1980. The Upper Cretaceous-Tertiary Formations of northern Libya: a synthesis. Department of Geological Researches and Mining Bulletin 12:1-85 [A. Hendy/A. Hendy] |
Secondary references:
| 9159 | W. Kiessling. 2003. Personal data. [W. Kiessling/W. Kiessling/W. Kiessling] |