Biohorizon in the Azygograptus lapworthi Biozone of the Huaytiquina section: Dapingian, Argentina

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

Geography
Country:Argentina State/province:Salta
Coordinates: 23.8° South, 67.2° West (view map)
Paleocoordinates:29.7° South, 169.8° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:hand sample
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:"Coquena"
Lithology and environment
Primary lithology:volcaniclastic mudstone
Lithology description: Immature coarse-grained wackes carrying graptolites and brachiopods. Turbidite dominated sedimentary deposits. The fossil-bearing deposits correspond to the Puna Turbidite Complex sensu Astini (2003).
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:microfossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Collection method comments: Cátedra de Paleontología General de la Universidad Nacional de Salta, Argentina (CNS-I 119/697:1-14).
Metadata
Also known as:Huaytiquina section
Database number:214524
Authorizer:E. Vlachos Enterer:N. Herrera Sánchez
Created:2020-10-05 11:36:47 Last modified:2025-02-22 15:12:02
Access level:the public Released:2020-10-05 11:36:47
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]