Bed 5 - Spaniodontella Bed (Karangian): Middle Miocene, Iran
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Cardiida
- Cardiidae
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Cardium sp.
Linnaeus 1758
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Bivalvia
- Cardiida
- Donacidae
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Donax sp.
Linnaeus 1758
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Bivalvia
- Cardiida
- Veneridae
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Tapes sp.
Mühlfeld 1811
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Bivalvia
- Cardiida
- Kelliellidae
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Spaniodontella intermedia
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Spaniodontella gentilis
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Spaniodontella sp.
Andrussow 1902
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Gastropoda
- Opisthobranchia
- Cylichnidae
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Acteocina sp.
Gray 1847
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Gastropoda
- Opisthobranchia
- Retusidae
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Cylichnina melitopolitana
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| spelled with current rank as Retusa (Cylichnina) | |||||||
| see common names | |||||||
Geography
| Country: | Iran |
| Coordinates: | 36.0° North, 51.2° East (view map) |
| Paleocoordinates: | 35.5° North, 50.2° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5 | ||
| Key time interval: | Middle Miocene | ||
| Age range of interval: | 15.98000 - 11.63000 m.y. ago |
Stratigraphy
| Formation: | Karanga | ||||
| Local section: | Tarud River | Local bed: | 240 m | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the "Spaniodontella" beds, which overlies the Middle Miocene Vindobondian Marl, and is overlain by the Konkian "Pholas" beds. THICKNESS: From unit of 30-50 m thick, within section that totals ~375 m. AGE: Karaganian (Middle Miocene). STRATIGRAPHIC POSITION: From bed 5 (upper of two units in the Karangian horizon. | |||||
Lithology and environment
| Primary lithology: | very fine,gray poorly lithified calcareous sandstone |
| Secondary lithology: | ooidal,shelly/skeletal poorly lithified "limestone" |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Sandstone, very fine grained, calcareous, thin-bedded, with several intercalations of oolitic limestone; containing abundant fossils. LITHIFICATION: Lithified, on the basis of limestone. | |
| Environment: | coastal indet. |
| Geology comments: ENVIRONMENT: Shallow marine siliciclastic environment, possibly nearshore based on faunal composition. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: COLLECTOR: Not stated, presumbaly P. E. Süssli. REPOSITORY: Not stated, presumably Geological Survey of Iran. | |
| Taxonomic list comments:COVERAGE: Exhaustive for gastropoda and bivalvia. NOMENCLATURE: Antiquated, but mostly assigned to species level. | |
Metadata
| Database number: | 77199 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2007-12-31 00:07:50 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | authorizer only | Released: | 2008-12-31 00:07:50 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 26131. | P. E. Süssli. 1976. The Geology of the Lower Haraz Valley area, Central Alborz, Iran. Geological Society of Iran Report 38 [A. Hendy/A. Hendy] |