Madrakah Cliffs - Shuwayr Fm: Chattian, Oman
collected by Harzhauser, Reuter, Piller, Kroh
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Varicospora mordax
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Gastropoda
- Batillariidae
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Pyrazisinus monstrosus
(Grateloup 1847)
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Gastropoda
- Cerithiidae
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Cerithium rude
Sowerby 1840
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| recombined as Cerithium (Ptychocerithium) rude | |||||||
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Gastropoda
- Turritellidae
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Turritella informal sp. 1
Lamarck 1799
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Gastropoda
- Solariellidae
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Solariella krohi n. sp.
Harzhauser 2007
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| see common names | |||||||
Geography
| Country: | Oman |
| Coordinates: | 19.0° North, 57.8° East (view map) |
| Paleocoordinates: | 13.4° North, 52.4° East |
| Basis of coordinate: | stated in text |
| Geographic resolution: | local area |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Chattian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Chattian | ||
| Age range of interval: | 27.82000 - 23.03000 m.y. ago |
Stratigraphy
| Formation: | Shuwayr | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Shuwayr Fm, which is unconformably overlain by the Warak Fm (Chattian). THICKNESS: From section of more than 90 m in thickness. AGE: latest Rupelian-early Chattian. Stated by Harzhauser to most likely be "Late Oligocene". Assigned here to Chattian. STRATIGRAPHIC POSITION: From throughout section, although facies become more marine and fossiliferous upsection. | |||||
Lithology and environment
| Primary lithology: | shelly/skeletal poorly lithified marl |
| Secondary lithology: | shelly/skeletal poorly lithified "limestone" |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Marls and bioclastic limestone. LITHIFICATION: Poorly lithified, based on figured specimens. | |
| Environment: | shallow subtidal indet. |
| Geology comments: ENVIRONMENT: Very shallow marine depositional environment. Some evidence of shallow sublittoral setting of a few tens of metres of water depth. Many taxa typical of patch reefs, coral carpets, sea grass meadows, and littoral mangrove flats. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Spatial orientation: | life position |
| Preservation of anatomical detail: | good |
| Articulated whole bodies: | some |
Collection methods and comments
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | NHMW |
| Collectors: | Harzhauser, Reuter, Piller, Kroh |
| Collection method comments: COLLECTORS: Harzhauser, Reuter, Piller, Kroh. REPOSITORY: NHMW (Vienna). | |
| Taxonomic list comments:COVERAGE: Only includes gastropods, and other taxa informally mentioned in text. | |
Metadata
| Database number: | 75606 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2007-10-20 13:12:18 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | authorizer only | Released: | 2008-10-20 13:12:18 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 25532. | M. Harzhauser. 2007. Oligocene and Aquitanian gastropod faunas from the Sultanate of Oman and their biogeographic implications for the western Indo-Pacific. Palaeontographica Abteilung A 280:75-121 [A. Hendy/A. Hendy] |