Dahaneh-e-Kolut, Derenjal Mountains, AH.8-43, 9-77, 9-99, Shirgesht Formation: Tremadocian, Iran

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Corynexochida - Leiostegiidae
Pseudocalymene superba
4 specimens
Trilobita - Asaphida - Nileidae
Nileus cf. exarmatus Tjernvik 1956
1 specimen
Trilobita - Asaphida - Asaphidae
Megalaspides winsnesi
1 specimen
see common names

Geography
Country:Iran
Coordinates: 34.1° North, 56.8° East (view map)
Paleocoordinates:5.1° North, 147.4° East
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period:Ordovician Epoch:Early/Lower Ordovician
Stage:Tremadocian 10 m.y. bin:Ordovician 1
Key time interval:Tremadocian
Age range of interval:485.40000 - 477.70000 m.y. ago
Stratigraphy
Formation:Shirgesht Member:Middle Carbonate
Stratigraphic resolution:bed
Stratigraphy comments: samples AH.8-43, AH.9-77 and AH.9-99 from the lower part of the Middle Carbonate Member, Tremadoc(-Early Arenig?)
Lithology and environment
Primary lithology: lithified "limestone"
Lithology description: sandy, marly red limestone
Environment:marine indet.
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:66867
Authorizer:W. Kiessling Enterer:U. Merkel
Modifier:U. Merkel Research group:marine invertebrate
Created:2006-10-19 04:08:04 Last modified:2006-10-19 07:43:58
Access level:the public Released:2006-10-19 04:08:04
Creative Commons license:CC BY
Reference information

Primary reference:

19028. D. L. Bruton, A. J. Wright, and M. A. Hamedi. 2004. Ordovician Trilobites from Iran. Palaeontographica Abteilung A 271(5-6):111-149 [W. Kiessling/U. Merkel]