Bed 20 of the Robat-e- Pai section, Afghanistan: Early/Lower Frasnian, Afghanistan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata
- Productida
- Productellidae
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Productella subaculeata
(Murchison 1840)
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Strophomenata
- Productida
- Araksalosiidae
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Whidbornella sp.
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Cyphoterorhynchus koraghensis
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Cyphoterorhynchus arpaensis
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Rhynchonellata
- Rhynchonellida
- Ladogiidae
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Ladogia meyendorfi
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2 specimens | |||||||||
Rhynchonellata
- Atrypida
- Atrypidae
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"Atrypa" sp.
Dalman 1828
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Rhynchonellata
- Spiriferida
- Ambocoeliidae
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Crurithyris sp.
George 1931
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Rhynchonellata
- Spiriferida
- Cyrtospiriferidae
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Platyspirifer minutus
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Uchtospirifer multiplicatus
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Uchtospirifer multiplicatus minor | ||||||||||
Cyrtospirifer aff. brodi
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see common names |
Geography
Country: | Afghanistan | State/province: | Herat |
Coordinates: | 34.6° North, 62.0° East (view map) | ||
Paleocoordinates: | 34.6° North, 62.0° East | ||
Basis of coordinate: | stated in text | ||
Geographic resolution: | outcrop |
Time
Period: | Devonian | Epoch: | Late/Upper Devonian |
Stage: | Frasnian | 10 m.y. bin: | Devonian 4 |
Key time interval: | Early/Lower Frasnian | ||
Age range of interval: | 383.70000 - 382.40000 m.y. ago |
Stratigraphy
Local section: | Robat-e-Pai | Local bed: | 20 | ||
Local order: | bottom to top | ||||
Stratigraphy comments: Bed 20 is 20m thick. About 640 meters above the base of the section and 380 meters below the top, not including the Carboniferous massive limestone.
lower Frasnian |
Lithology and environment
Primary lithology: | brown "limestone" |
Lithology description: well bedded brownish limestone | |
Environment: | marine indet. |
Geology comments: section is inverted, with an average dip of 55 degrees to the north |
Taphonomy
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | taxonomic analysis |
Collection method comments: Originals are housed in the Geological Institute of the University of Kabul (GIFa/Fa). |
Metadata
Database number: | 70149 | ||
Authorizer: | A. Miller | Enterer: | J. Sessa |
Modifier: | J. Sessa | Research group: | marine invertebrate |
Created: | 2007-03-19 13:34:54 | Last modified: | 2007-03-19 19:40:54 |
Access level: | the public | Released: | 2007-03-19 13:34:54 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
23566. | M. Farsan. 1981. New Asteropyginae (Trilobita) from the Devonian of Afghanistan. Palaeontographica Abteilung A 176(4-6):158-171 [A. Miller/J. Sessa] |