Biohorizon in the Azygograptus lapworthi Biozone of the Chaupi Uno section: Dapingian, Bolivia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Pterobranchia - Graptoloidea - Dichograptidae
Azygograptus lapworthi Nicholson 1875
see common names

Geography
Country:Bolivia
Coordinates: 21.3° South, 65.2° West (view map)
Paleocoordinates:32.7° South, 169.0° West (Wright 2013)
Basis of coordinate:estimated from map
Time
Period: Ordovician Epoch: Middle Ordovician
Stage: Dapingian 10 m.y. bin: Ordovician 2
Key time interval: Dapingian Graptolite zone:  Azygograptus lapworthi
Age range of interval: 471.3 - 469.4 m.y. ago
Stratigraphy
Formation:Pircancha
Lithology and environment
Primary lithology: mudstone
Includes fossils?Y
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:microfossils
Collection methods and comments
Collection methods:selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Collection method comments: Material housed in the paleontological collection of the Centro de Investigaciones en Ciencias de la Tierra (CICTERRA), CONICET and Universidad Nacional de Córdoba, Córdoba, Argentina, under the prefix CEGH-UNC.
Metadata
Also known as:Chaupi Uno section
Database number:214526
Authorizer:E. Vlachos Enterer:N. Herrera Sánchez
Created:2020-10-05 11:59:24 Last modified:2025-02-22 15:12:02
Access level:the public Released:2020-10-05 11:59:24
Creative Commons license:CC0
Reference information

Primary reference:
73980. B. A. Toro and N. C. Herrera Sánchez. 2019. Stratigraphical distribution of the Ordovician graptolite Azygograptus Nicholson & Lapworth in the Central Andean Basin (northwestern Argentina and southern Bolivia). Comptes Rendus Palevol 18:493-507 [E. Vlachos/N. Herrera Sánchez]