Cachiyuyo River section. 2200 m above base. Famatina Range: Arenig, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Nuculanida
- Malletiidae
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Suria ovalis
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1 specimen | |||||||||
| (1 measurement) | ||||||||||
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Rostroconchia
- Ribeirioida
- Technophoridae
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Ribeiria spinosa
Babin and Branisa 1987
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1 specimen | |||||||||
| 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 | ||
| *Period: | Early/Lower Ordovician | *Epoch: | Early/Lower Arenig - Middle Arenig |
| *International age/stage: | Early/Lower Arenig - Middle Arenig | ||
| Key time interval: | Arenig | Graptolite zone: | Baltograptus minutus |
| Age range of interval: | 477.7 - 468.4 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Suri | ||
| Local section: | Cachiyuyo River | Local bed: | 2200 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: | 14223 | ||
| Authorizer: | A. Miller | Enterer: | R. Krause |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2002-05-28 09:07:01 | Last modified: | 2015-05-31 12:12:27 |
| Access level: | the public | Released: | 2002-05-28 09:07:01 |
| 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] |