Locality A (from Ihering 1904, 1907, 1914) - Río Foyel Fm: Early/Lower Oligocene, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Struthiolariidae
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Struthiolaria densestriata
(Ihering 1897)
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Ihering 1907 | ||||||
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= Struthiolarella ornata
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Chiesa and Camacho 2001 | ||||||
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Bivalvia
- Hiatellida
- Hiatellidae
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Panopea nucleus
(Ihering 1899)
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Ihering 1907 | ||||||
| see common names | |||||||
Geography
| Country: | Argentina |
| Coordinates: | 41.7° South, 71.4° West (view map) |
| Paleocoordinates: | 43.6° South, 63.1° West |
| Basis of coordinate: | stated in text |
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Rupelian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Early/Lower Oligocene | ||
| Age range of interval: | 33.90000 - 27.82000 m.y. ago |
Stratigraphy
| Formation: | Rio Foyel | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From Rio Foyel Fm. Unknown stratigraphic relations. THICKNESS: From lower 7 m of 18 m thick section. AGE: Considered to be Late Eocene to Early Oligocene according to foraminiferal, ostracod and microfloral biostratigraphy by Chiesa and Camacho (2001). Griffin et al. (2004) indicated an Early Oligocene age with Sr dates. STRATIGRAPHIC POSITION: From lower part of formation. | |||||
Lithology and environment
| Primary lithology: | lithified sandy,calcareous "shale" |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Massive to finely bedded shale with calcareous sandstone beds. LITHIFICATION: Presumably lithified, based on age and facies (concretions and calcarenites | |
| Environment: | offshore |
| Geology comments: ENVIRONMENT: Offshore, siliciclastic setting. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: COLLECTOR: Unknown collector, possibly authors (publication in spanish). REPOSITORY: Museo Nacional de Buenos Aires. | |
| Taxonomic list comments:COVERAGE; Exhaustive for brachiopods, bivalves, and gastropods. NOMENCLATURE: Authoritative publication, using fairly modern nomenclature and species-level assignments. | |
Metadata
| Database number: | 71594 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2007-04-30 17:21:08 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | authorizer only | Released: | 2008-04-30 17:21:08 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 24191. | J. O. Chiesa and H. H. Camacho. 2001. Invertebrados marino Eocenos de la parte de Río Negro, Argentina. Revista Española de Paleontología 16(2):299-316 [A. Hendy/A. Hendy] |
Secondary references:
| 24196 | H. Ihering. 1907. Les Mollusques fossiles du Tertiare et du Crétacé supérieur de l' Argentine. Anales Museo Nacional de Buenos Aires 15(3):1-611 [A. Hendy/A. Hendy] |