Lomitos Cgl, Talara Fm - Salina area, Peru: Bartonian, Peru
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Terebratulida
- Terebratulidae
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Liothyrina peruviana
Olsson 1928
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Cephalopoda
- Nautilida
- Aturiidae
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Aturia alabamensis
(Morton 1834)
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| Subspecies: Aturia alabamensis peruviana | ||||||||||
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Gastropoda
- Heterostropha
- Architectonicidae
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Architectonica chira
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Architectonica sullana
Olsson 1928
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Gastropoda
- Turritellidae
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Turritella chira
Olsson 1928
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Turritella samanensis
Olsson 1928
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Gastropoda
- Epitoniidae
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Epitonium (Acrilla) peruvianum
Olsson 1928
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Gastropoda
- Naticidae
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Polinices (Polinices) woodi
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Natica (Natica) peruviana
Olsson 1928
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Gastropoda
- Neogastropoda
- Nassariidae
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Tritiaria salina
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| spelled with current rank as Nassarius (Tritiaria) | ||||||||||
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Tritiaria terebratula
(Olsson 1928)
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Gastropoda
- Neogastropoda
- Buccinidae
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Dorsanum lagunitensis
(Woods 1922)
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Pseudoliva samanica
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Pseudoliva modesta
Olsson 1928
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Gastropoda
- Neogastropoda
- Drilliidae
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Drillia parina
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Gastropoda
- Neogastropoda
- Terebridae
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Terebra negritensis n. sp.
Olsson 1930
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Gastropoda
- Neogastropoda
- Raphitomidae
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Daphnella salina
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Gastropoda
- Neogastropoda
- Olivellidae
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Agaronia inca n. sp.
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Gastropoda
- Neogastropoda
- Volutidae
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Lyria scabulosa
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Peruluta peruviana
(Douvillé 1921)
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| Subspecies: Peruluta peruviana samanica | ||||||||||
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Gastropoda
- Neogastropoda
- Strepsiduridae
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Ancillarina pananga n. sp.
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Gastropoda
- Strombidae
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Ectinochilus gaudichaudi
(d'Orbigny 1842)
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| Subspecies: Ectinochilus gaudichaudi alauda | ||||||||||
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Gastropoda
- Eocypraeidae
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Amphiperas negritensis
(Olsson 1928)
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| recombined as Sphaerocypraea negritensis | ||||||||||
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Gastropoda
- Cassidae
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? Sconsia samanica
Olsson 1928
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| recombined as Doliocassis samanica | ||||||||||
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Gastropoda
- Ficidae
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Ficus otaria
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Bivalvia
- Mytilida
- Mytilidae
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Mytilus sp.
Linnaeus 1758
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Bivalvia
- Pectinida
- Anomiidae
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Anomia sp.
Linnaeus 1758
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Bivalvia
- Cardiida
- Veneridae
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Pitaria (Lamelliconcha) salsola
Olsson 1928
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| synonym of Lamelliconcha hillii | ||||||||||
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Clementia peruviana
Olsson 1928
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| recombined as Clementia (Egesta) peruviana | ||||||||||
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Bivalvia
- Cardiida
- Mactridae
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? Mactra sp.
Linnaeus 1767
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Bivalvia
- Pholadida
- Corbulidae
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Corbula salina
Olsson 1928
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| recombined as Caryocorbula salina | ||||||||||
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Corbula boggsi
Olsson 1928
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| recombined as Juliacorbula boggsi | ||||||||||
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Bivalvia
- Pholadida
- Raetomyidae
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Amotapas arbolensis
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Bivalvia
- Pholadida
- Pholadidae
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Martesia sp.
Sowerby 1824
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Bivalvia
- Solenida
- Pharidae
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Ensis sp.
Schumacher 1817
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| see common names | ||||||||||
Geography
| Country: | Peru | State/province: | Piura |
| Coordinates: | 5.9° South, 80.6° West (view map) | ||
| Paleocoordinates: | 8.5° South, 72.8° West | ||
| 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: | 41.20000 - 37.71000 m.y. ago |
Stratigraphy
| Formation: | Talara | Member: | Talara Shale | ||
| Local section: | Salina | 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. | |||||
Lithology and environment
| Primary lithology: | yellow poorly lithified sandstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: Yellow 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: | 52527 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2005-08-10 12:18:03 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2005-08-10 12:18:03 |
| Creative Commons license: | CC BY |
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] |