Cachiyuyo River section. 1800 m above base. Famatina Range: Arenig, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Lipanellidae
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? Cosmogoniophorina tenuicostata
Harrington 1938
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6 specimens | ||||||
Bivalvia
- Modiomorphida
- Modiomorphidae
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? Colpomya sp.
Ulrich 1893
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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 | ||
Geographic resolution: | local area |
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: | Cachiyuyo River | Local bed: | 1800 m |
Local order: | bottom to top | ||
Stratigraphic resolution: | formation |
Lithology and environment
Primary lithology: | "shale" |
Secondary lithology: | sandstone |
Includes fossils? | Y |
Includes fossils? | Y |
Lithology description: "...marine shales, sandstones, and layers of volcaniclastic material." | |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | mold/impression |
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: | 169615 | ||
Authorizer: | P. Wagner | Enterer: | P. Wagner |
Modifier: | P. Wagner | Research group: | marine invertebrate |
Created: | 2015-05-31 11:20:20 | Last modified: | 2015-05-31 12:10:15 |
Access level: | the public | Released: | 2015-05-31 11:20:20 |
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] |