Lomitos Cgl, Talara Fm - Salina area, Peru: Bartonian, Peru

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Nautilida - Aturiidae
Aturia alabamensis (Morton 1834)
Subspecies: Aturia alabamensis peruviana
Gastropoda - Epitoniidae
Epitonium (Acrilla) peruvianum Olsson 1928
Gastropoda - Turritellidae
Turritella chira Olsson 1928
Turritella samanensis Olsson 1928
Gastropoda - Cassidae
? Sconsia samanica Olsson 1928
Gastropoda - Eocypraeidae
Amphiperas negritensis (Olsson 1928)
Gastropoda - Strombidae
Ectinochilus gaudichaudi (d'Orbigny 1842)
Subspecies: Ectinochilus gaudichaudi alauda
Gastropoda - Ficidae
Ficus otaria
Gastropoda - Neogastropoda - Nassariidae
Tritiaria salina
Tritiaria terebratula (Olsson 1928)
Gastropoda - Neogastropoda - Buccinidae
Dorsanum lagunitensis (Woods 1922)
Pseudoliva samanica
Pseudoliva modesta Olsson 1928
Gastropoda - Neogastropoda - Strepsiduridae
Ancillarina pananga n. sp.
Gastropoda - Neogastropoda - Volutidae
Lyria scabulosa
Peruluta peruviana (Douvillé 1921)
Subspecies: Peruluta peruviana samanica
Gastropoda - Neogastropoda - Olivellidae
Agaronia inca n. sp.
Gastropoda - Neogastropoda - Raphitomidae
Daphnella salina
Gastropoda - Neogastropoda - Terebridae
Terebra negritensis n. sp. Olsson 1930
Gastropoda - Neogastropoda - Drilliidae
Drillia parina
Gastropoda - Naticidae
Polinices (Polinices) woodi
Natica (Natica) peruviana Olsson 1928
Gastropoda - Heterostropha - Architectonicidae
Architectonica chira
Architectonica sullana Olsson 1928
Bivalvia - Pectinida - Anomiidae
Anomia sp. Linnaeus 1758
Bivalvia - Mytilida - Mytilidae
Mytilus sp. Linnaeus 1758
Bivalvia - Cardiida - Veneridae
Pitaria (Lamelliconcha) salsola Olsson 1928
Clementia peruviana Olsson 1928
Bivalvia - Cardiida - Mactridae
? Mactra sp. Linnaeus 1767
Bivalvia - Pholadida - Raetomyidae
Amotapas arbolensis
Bivalvia - Pholadida - Corbulidae
Corbula boggsi Olsson 1928
Corbula salina Olsson 1928
Bivalvia - Pholadida - Pholadidae
Martesia sp. Sowerby 1824
Bivalvia - Solenida - Pharidae
Ensis sp. Schumacher 1817
Rhynchonellata - Terebratulida - Terebratulidae
Liothyrina peruviana Olsson 1928
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: 41.2 - 37.71 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]