Shaqra Group (Dhruma Fm.): Bathonian, Saudi Arabia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Ammonitida
- Stephanoceratidae
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Ermoceras aff. mogharensis
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Cephalopoda
- Ammonitida
- Spiroceratidae
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Spiroceras annulatum
(d'Orbigny 1850)
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Rhynchonellata
- Rhynchonellida
- Tetrarhynchiidae
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Burmirhynchia sp.
Buckman 1917
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| =n.sp.A | ||||||||||
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Burmirhynchia termierae
Rousselle 1965
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Kallirhynchia sp.
Buckman 1917
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Rhynchonellata
- Terebratulida
- Lobothyrididae
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Tubithyris sp.
Buckman 1917
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Tubithyris chouberti
Rousselle 1965
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Tubithyris cf. jubaensis
(Weir 1929)
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Cererithyris wylliei
Weir 1929
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| recombined as Tubithyris wylliei | ||||||||||
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Rhynchonellata
- Terebratulida
- Eudesiidae
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Eudesia magharensis
Farag 1960
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| recombined as Eudesia (Sphriganaria) magharensis | ||||||||||
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Rhynchonellata
- Terebratulida
- Zeilleriidae
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Ornithella sp.
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Rugitela praebullata
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| see common names | ||||||||||
Geography
| Country: | Saudi Arabia |
| Coordinates: | 24.1° North, 45.5° East (view map) |
| Paleocoordinates: | 1.6° South, 33.2° East |
| Basis of coordinate: | stated in text |
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic | Epoch: | Middle Jurassic |
| Stage: | Bathonian | 10 m.y. bin: | Jurassic 4 |
| Key time interval: | Bathonian | ||
| Age range of interval: | 168.20000 - 165.30000 m.y. ago |
Stratigraphy
| Geological group: | Shaqra | Formation: | Dhruma |
| Local section: | Zone at Garantiano | Local bed: | D3,1 |
| Local order: | bottom to top |
Lithology and environment
| Primary lithology: | lithified "limestone" | ||
| Includes fossils? | Y | ||
| Environment: | lagoonal/restricted shallow subtidal | Tectonic setting: | cratonic basin |
| Geology comments: The Dhruma Fm essentially is composed of limestones and clayey rocks in its central outcrop zone but passes to detrial facies northwards and southwards. | |||
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: | 48137 | ||
| Authorizer: | F. Fursich | Enterer: | S. Hicks |
| Modifier: | S. Hicks | Research group: | marine invertebrate |
| Created: | 2005-03-15 04:05:27 | Last modified: | 2005-03-15 06:15:29 |
| Access level: | the public | Released: | 2005-03-15 04:05:27 |
| 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] |