Quebrada Las Playas: Mississippian, Argentina
collected by G. Farque
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Strophomenata
- Orthotetida
- Schuchertellidae
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Streptorhynchus inaequiornatus
Leanza 1945
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Rhynchonellata
- Spiriferinida
- Syringothyrididae
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Septosyringothyris sp.
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| see common names | |||||||
Geography
| Country: | Argentina | State/province: | San Juan |
| Coordinates: | 29.3° South, 68.6° West (view map) | ||
| Paleocoordinates: | 58.6° South, 74.2° West | ||
| Basis of coordinate: | based on political unit | ||
| Geographic resolution: | small collection |
Time
| Period: | Carboniferous | Epoch: | Mississippian |
| 10 m.y. bin: | Carboniferous 1-3 | ||
| Key time interval: | Mississippian | ||
| Age range of interval: | 358.90000 - 323.20000 m.y. ago |
Stratigraphy
| Formation: | Volcan | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: "Evidence afforded by the brachiopods suggests a Lower Carboniferous age for the Volcan formation, although the scarcity of the material does not permit an exact age determination." | |||||
Lithology and environment
| Primary lithology: | lithified wackestone |
| Secondary lithology: | lithified "limestone" |
| Lithology description: "The Volcan Formation is a 500 meter thick succession starting with continental deposits containing plant fragments, grading into an upper section of graywackes, limestones and mudstones containing a marine fauna from which the brachiopods were taken." | |
| Environment: | shallow subtidal indet. |
Taphonomy
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | observed (not collected) |
| Reason for describing collection: | paleoecologic analysis |
| Collectors: | G. Farque |
| Taxonomic list comments:"These [brachiopods] are associated with gastropods, pelecypods, cephalopods, conulariids and ostracods." | |
Metadata
| Database number: | 74057 | ||
| Authorizer: | N. Heim | Enterer: | N. Heim | Research group: | marine invertebrate |
| Created: | 2007-07-19 10:46:06 | Last modified: | 2017-05-23 16:34:15 |
| Access level: | the public | Released: | 2007-07-19 10:46:06 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 24857. | A. J. Amos. 1958. Some Lower Carboniferous brachiopods from the Volcan Formation, San Juan, Argentina. Journal of Paleontology 32(5):838-845 [N. Heim/N. Heim] |