Pridoli age section of Low Espejos Fm, western Argentina: Pridoli, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Nuculanida
- Nuculanidae
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Anthracoleda minuta
Sanchez et al. 1995
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| Subgenus Pseudoleda | ||||||||||
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Bivalvia
- Nuculanida
- Malletiidae
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? Palaeoneilo sp.
Hall and Whitfield 1869
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| originally entered as "Palaeoneilo? sp." | ||||||||||
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Bivalvia
- Nuculanida
- Cucullellidae
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Nuculites argentinum
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Bivalvia
- Solemyida
- Ctenodontidae
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Praectenodonta alternata
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2 specimens | |||||||||
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Bivalvia
- Ostreida
- Pterineidae
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Actinopteria modesta
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Bivalvia
- Modiomorphida
- Modiomorphidae
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Sphenotomorpha cf. ulrichi
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2 specimens | |||||||||
| "cf. S. ulrichi" - originally entered as "Sphenotomorpha cf. S. ulrichi" | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | San Juan |
| Coordinates: | 30.0° South, 69.0° West (view map) | ||
| Paleocoordinates: | 48.3° South, 126.0° West | ||
| Geographic resolution: | local area |
Time
| Period: | Silurian | Epoch: | Pridoli |
| 10 m.y. bin: | Silurian 2 | ||
| *Period: | Late/Upper Silurian | ||
| Key time interval: | Pridoli | ||
| Age range of interval: | 423.00000 - 419.20000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Los Espejos | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Formation ranges in age from Wenlock through early Lochkovian; this is strictly from the Pridole aged section; Tucunuco Group | |||||
Lithology and environment
| Primary lithology: | lithified sandstone |
| Secondary lithology: | "shale" |
| Environment: | transition zone/lower shoreface |
| Geology comments: Midshelf and proximal shelf setting with moderate storm deposition | |
Taphonomy
| Modes of preservation: | body,replaced with calcite |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | bulk,surface (in situ),mechanical,field collection |
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:Bivalve systematics | |
Metadata
| Database number: | 3524 | ||
| Authorizer: | A. Miller | Enterer: | P. Novack-Gottshall | Research group: | marine invertebrate |
| Created: | 1999-08-04 09:06:16 | Last modified: | 1999-08-04 12:06:16 |
| Access level: | the public | Released: | 2000-11-20 13:53:19 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 206. | T. M. Sanchez, B. G. Waisfeld, and B. A. Toro. 1995. Silurian and Devonian molluscan bivalves from precordillera region, western Argentina. Journal of Paleontology 69(5):869-885 [A. Miller/P. Novack-Gottshall/J. Alroy] |