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
Productella subaculeata (Murchison 1840)
Strophomenata - Productida - Araksalosiidae
Whidbornella sp.
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Cyphoterorhynchus koraghensis
Cyphoterorhynchus arpaensis
Rhynchonellata - Rhynchonellida - Ladogiidae
Ladogia meyendorfi
2 specimens
Rhynchonellata - Atrypida - Atrypidae
"Atrypa" sp. Dalman 1828
Rhynchonellata - Spiriferida - Ambocoeliidae
Crurithyris sp. George 1931
Rhynchonellata - Spiriferida - Cyrtospiriferidae
Platyspirifer minutus
Uchtospirifer multiplicatus
Uchtospirifer multiplicatus minor
Cyrtospirifer aff. brodi
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]