Khasm Dalqan: Ladinian, Saudi Arabia
collected by Joint Saudi-Australian field team 2007
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Saurichthyiformes
- Saurichthyidae
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Saurichthys sp.
Agassiz 1834
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Reptilia
- Nothosauria
- Simosauridae
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Simosaurus sp.
Meyer 1842
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Chondrichthyes
- Hybodontiformes
- Hybodontidae
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Hybodus sp.
Agassiz 1834
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see common names |
Geography
Country: | Saudi Arabia |
Coordinates: | 24.2° North, 45.6° East (view map) |
Paleocoordinates: | 22.1° South, 42.1° East |
Basis of coordinate: | stated in text |
Geographic resolution: | outcrop |
Time
Period: | Triassic | Epoch: | Middle Triassic |
Stage: | Ladinian | 10 m.y. bin: | Triassic 2 |
Key time interval: | Ladinian | ||
Age range of interval: | 242.00000 - 237.00000 m.y. ago |
Stratigraphy
Formation: | Jilh | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: Jilh Formation is late Anisian-lowermost Carnian |
Lithology and environment
Primary lithology: | dolomitic lithified sandstone |
Lithology description: Isolated vertebrate bones and teeth occur randomly throughout thick carbonate beds near the base of the main dolomitic sandstone sequence | |
Environment: | paralic indet. |
Geology comments: Lithological features imply sediment deposition under paralic marine conditions (tidal flats). Inter-bedded fluvial sands and clayey strata at the bottom of the dolomitic series are thought to derive from estuarine outlet channels (Sharief 1986). The upper carbonate beds represent a restricted evaporitic lagoon complex bordering a shallow offshore shelf (Sharief 1986). |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | taxonomic analysis | ||
Collectors: | Joint Saudi-Australian field team | Collection dates: | 2007 |
Collection method comments: Repository: Saudi Geological Survey (SGS), Jiddah, Kingdom of Saudi Arabia |
Metadata
Database number: | 149549 | ||
Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | vertebrate |
Created: | 2013-08-07 14:28:14 | Last modified: | 2013-11-25 13:02:06 |
Access level: | the public | Released: | 2013-08-07 14:28:14 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
47904. | B. P. Kear, T. H. Rich, P. Vickers-Rich, M. A. Ali, Y. A. Al-Mufarrih, A. D. Matari, A. M. Al-Masary and M. A. Halawani. 2010. A review of aquatic vertebrate remains from the Middle-Upper Triassic Jilh Formation of Saudi Arabia. Proceedings of the Royal Society of Victoria 122:1-8 [M. Clapham/M. Clapham] |