Chaschuil River section. 110 meters above base. Famatina Range: Arenig, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Actinodontida - Cycloconchidae
Catamarcaia chaschuilensis (Aceñolaza and Toselli 1977)
Bivalvia - Modiomorphida - Modiomorphidae
Redonia suriensis Sánchez and Babin 1994
? Colpomya sp. Ulrich 1893
3 specimens
see common names

Geography
Country:Argentina State/province:La Rioja
Coordinates: 26.4° South, 66.9° West (view map)
Paleocoordinates:39.7° South, 130.7° West
Time
Period: Ordovician
10 m.y. bin: Ordovician 2
Key time interval: Arenig Graptolite zone:  Baltograptus minutus
Age range of interval: 477.7 - 468.4 m.y. ago
Stratigraphy
Formation:Suri
Local section:Chaschuil River Local bed:110 m
Local order:bottom to top
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: "shale"
Secondary lithology: sandstone
Includes fossils?Y
Includes fossils?Y
Lithology description: "...marine shales, sandstones, and volcaniclastic material."
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:all microfossils,some macrofossils
Collection methods:selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:169613
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:2015-05-31 11:04:24 Last modified:2015-05-31 12:11:53
Access level:the public Released:2015-05-31 11:04:24
Creative Commons license:CC BY
Reference information

Primary reference:
6295. T. M. Sanchez. 1997. Additional Mollusca (Bivalvia and Rostroconchia) from the Suri Formation, Early Ordovician (Arenig), western Argentina. Journal of Paleontology 71(6):1046-1053 [A. Miller/R. Krause/R. Krause]