Lomitos Cgl, Talara Fm - Talara Golf Course, Peru: Bartonian, Peru
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Discocyclinidae
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Gastropoda
- Neogastropoda
- Turbinellidae
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Eoxancus talarensis n. sp.
Olsson 1930
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Bivalvia
- Arcida
- Arcidae
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Arca (Argina) samanensis
Olsson 1929
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Bivalvia
- Ostreida
- Pinnidae
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Bivalvia
- Cardiida
- Tellinidae
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Bivalvia
- Cardiida
- Veneridae
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Clementia peruviana n. sp.
Olsson 1928
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Bivalvia
- Nuculanida
- Nuculanidae
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Leda (Adrana) sp.
(Adams and Adams 1858)
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see common names |
Geography
Country: | Peru | State/province: | Piura |
Coordinates: | 4.6° South, 81.3° West (view map) | ||
Paleocoordinates: | 4.4° South, 69.2° West (Wright 2013) | ||
Basis of coordinate: | based on nearby landmark | ||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Bartonian | 10 m.y. bin: | Cenozoic 3 |
Key time interval: | Bartonian | ||
Age range of interval: | 41.03 - 37.71 m.y. ago |
Stratigraphy
Formation: | Talara | Member: | Talara Shale | ||
Local section: | Talara | Local bed: | Lomitas conglomerate | ||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: Regarded as lower Upper Eocene on the basis of faunal similarity. Foraminifera suggest an upper Eocene age. Olsson states that the Talara and Saman rocks can be referred to the Upper Eocene and in terms of the European section, to the Bartonian and Ludian.....respectively? In most places the Talara Formation can be divided into three members, a lower shale (Talara Shale), a middle sandstone (Talara Sandstone), and an upper shale (Pozo Shale). In a complete section the Talara Formation has an average thickness of about 2800 ft. The collection is derived from a sandy basal layer known as the Lomitos Conglomerate in the Talara Shale member, which can reach a thickness of 400 ft or more. Collection derived from an outcrop containing well exposed sandstone lying on more steeply dipping Restin shales. |
Lithology and environment
Primary lithology: | poorly lithified sandstone |
Includes fossils? | Y |
Includes fossils? | Y |
Lithology description: Sandstone | |
Environment: | coastal indet. |
Geology comments: Appears to be shelfal siliciclastic environment judging from faunal composition. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | selective quarrying,field collection |
Reason for describing collection: | taxonomic analysis |
Collection method comments: No museum repositories are reported, but material may presumably be the AMNH of PRI collections. Because of uncertaintly this field is left ommited. | |
Taxonomic list comments:Exhaustive for Mollusca. |
Metadata
Database number: | 52531 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2005-08-10 12:29:09 | Last modified: | 2025-02-22 15:12:02 |
Access level: | the public | Released: | 2005-08-10 12:29:08 |
Creative Commons license: | CC0 |
Reference information
Primary reference:
14126. | A. A. Olsson. 1930. Contributions to the Tertiary Paleontology of Northern Peru: Part 3, Eocene Mollusca. Bulletins of American Paleontology 17(62):1-164 [A. Miller/A. Hendy/A. Hendy] |