Shaqra Group (Tuwaiq Mt. Lst.,T1,2): Callovian, Saudi Arabia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Cyclichna sp.
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| =Lammeli. | ||||||||||
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Spirillinidae
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Spirillina sp.
Reuss 1862
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Globotextulariidae
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Pseudomarssonella sp.
Redmond 1965
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Pfenderinidae
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Kurnubia bramkampi
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Kurnubia ex gr. palastiniensis
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Trocholinidae
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Trocholina palastiniensis
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| =Foram. | ||||||||||
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Gastropoda
- Opisthobranchia
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Nerinea bruntrutana
Ooster 1869
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| synonym of Ptygmatis pseudobruntrutana | ||||||||||
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Gastropoda
- Heterostropha
- Nerineidae
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Cossmannea sp.
Pcelincev 1931
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Nerinea sp.
Deshayes 1827
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Gastropoda
- Ampullinidae
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Globularia sp.
Swainson 1840
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Gastropoda
- Naticidae
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Ampullaria sp.
Lamarck 1799
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| spelled with current rank as Natica (Ampullaria) | ||||||||||
| =Gastr. | ||||||||||
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Gastropoda
- Discohelicidae
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Discohelix sp.
Dunker 1847
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Gastropoda
- Trochidae
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Trochus sp.
Linnaeus 1758
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Bivalvia
- Megalodontida
- Dicerocardiidae
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Pseudisocardia cf. macfadyeni
Cox 1935
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Bivalvia
- Megalodontida
- Ceratomyopsidae
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Ceratomyopsis somaliensis
(Weir 1929)
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Ceratomyopsis cf. arabica
(Cox 1935)
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Bivalvia
- Pholadida
- Ceratomyidae
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Ceratomya cf. concentrica
Sowerby 1822
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Bivalvia
- Pholadomyida
- Pholadomyidae
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Homomya cf. gibbosa
Sowerby 1814
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Bivalvia
- Pectinida
- Limidae
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Plagiostoma cf. subcardiiformis
Greppin 1867
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Bivalvia
- Pectinida
- Pectinidae
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Eopecten inequistriatus
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Chlamys splendens
(Dollfus 1863)
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Chlamys cf. curvivarians
(Dietrich 1933)
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Bivalvia
- Ostreida
- Palaeolophidae
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Lopha solitaria
(Sowerby 1824)
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| synonym of Actinostreon gregareum | ||||||||||
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Bivalvia
- Ostreida
- Pinnidae
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Trichites saussurei
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Bivalvia
- Mytilida
- Mytilidae
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Inoperna cf. sowerbyana
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| see common names | ||||||||||
Geography
| Country: | Saudi Arabia |
| Coordinates: | 25.8° North, 45.3° East (view map) |
| Paleocoordinates: | 0.1° South, 33.7° East |
| Basis of coordinate: | stated in text |
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic | Epoch: | Middle Jurassic |
| Stage: | Callovian | 10 m.y. bin: | Jurassic 5 |
| Key time interval: | Callovian | ||
| Age range of interval: | 165.30000 - 161.50000 m.y. ago |
Stratigraphy
| Geological group: | Shaqra | Formation: | Tuwaiq Mt.Lst. |
| Local section: | Coupe du Khashm al Furuthi | Local bed: | T1,2 |
| Local order: | bottom to top |
Lithology and environment
| Primary lithology: | lithified "limestone" | ||
| Includes fossils? | Y | ||
| Lithology description: yellow, clayey limestones | |||
| Environment: | lagoonal/restricted shallow subtidal | Tectonic setting: | cratonic basin |
| Geology comments: The Tuwaiq Mt. Lst. of middle to late Callovian age; locally clayey at the base; this predominantly calcareous formation determines the characteristic relief of central Arabia (Jabal Tuwayq); it is a reef platform. | |||
Taphonomy
| Size of fossils: | macrofossils,microfossils |
Collection methods and comments
| Collection methods: | bulk,mechanical,field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 47912 | ||
| Authorizer: | F. Fursich | Enterer: | S. Hicks |
| Modifier: | S. Hicks | Research group: | marine invertebrate |
| Created: | 2005-03-07 03:43:18 | Last modified: | 2005-03-07 05:43:18 |
| Access level: | the public | Released: | 2005-03-07 03:43:16 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 11728. | J. Manivit, Y.-M. Le Nindre, and D. Vaslet. 1990. Le Jurassique D`Arabie Centrale. Document du BRGM 4(194):25-519 [F. Fursich/S. Hicks/W. Kiessling] |