Bed 104: Berriasian, Iraq

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Parodontoceras callisto Orbigny 1850
Cephalopoda - Ammonitida - Neocomitidae
Berriasella informal sp. 6 Uhlig 1905
Berriasella (Berriasiella) jacobi Mazenot 1939
Berriasella aff. carpathica Mazenot 1939
Berriasella aff. alpillensis Mazenot 1939
replaced by Tirnovella alpillensis
see common names

Geography
Country:Iraq State/province:Zakho
Coordinates: 37.0° North, 43.4° East (view map)
Paleocoordinates:8.8° North, 38.1° East
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Berriasian 10 m.y. bin:Cretaceous 1
Key time interval:Berriasian Ammonoid zone: Pseudosubplanites euxinus
Age range of interval:145.00000 - 139.80000 m.y. ago
Stratigraphy
Formation:Chia Gara
Local section:Chia Gara Local bed:104
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: Total thickness 232.4 meters
Lithology and environment
Primary lithology:brown lithified "limestone"
Secondary lithology: lithified marl
Includes fossils?Y
Includes fossils?Y
Environment:marine indet.
Taphonomy
Modes of preservation:body,cast
Size of fossils:macrofossils
Collection methods and comments
Collection methods:selective quarrying,field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:192416
Authorizer:A. Rojas Enterer:A. Rojas
Created:2018-04-02 08:38:18 Last modified:2018-04-02 08:38:18
Access level:authorizer only Released:2020-04-02 08:38:18
Creative Commons license:CC BY
Reference information

Primary reference:
64922. M. K. Howarth. 1992. Tithonian and Berriasian ammonites from the Chia Gara Formation in northern Iran. Palaeontology 35(3):597-655 [A. Rojas/A. Rojas/A. Rojas]