Casa Saman [Saman Fm]: Late/Upper Eocene, Peru
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
|
||||||||||
Lagunitas peruvianus
|
||||||||||
Lagunitas samanicus
|
||||||||||
Cephalopoda
- Nautilida
- Aturiidae
|
||||||||||
Aturia peruviana
(Olsson 1928)
|
||||||||||
SUBSPECIES: Aturia alabamensis peruviana | ||||||||||
Gastropoda
- Neotaenioglossa
- Calyptraeidae
|
||||||||||
Crepidula sp.
Lamarck 1799
|
||||||||||
Calyptraea saxosa n. sp.
|
||||||||||
Typo: "Claytraea saxosa" | ||||||||||
Gastropoda
- Cerithiidae
|
||||||||||
Cerithium (Iddingsia) laeviusculum
(Gabb 1869)
|
||||||||||
recombined as Iddingsella laeviusculum | ||||||||||
Gastropoda
- Turritellidae
|
||||||||||
Turritella samanensis n. sp.
Olsson 1928
|
||||||||||
Turritella chira n. sp.
Olsson 1928
|
||||||||||
Turritella boughtoni n. sp.
Olsson 1928
|
||||||||||
Gastropoda
- Potamididae
|
||||||||||
? Telescopium samanense n. sp.
Olsson 1928
|
Olsson 1928 | |||||||||
Gastropoda
- Ampullinidae
|
||||||||||
Ampullina chira
|
||||||||||
Ampullina ortoni
Gabb 1870
|
||||||||||
Gastropoda
- Strombidae
|
||||||||||
Ectinochilus gaudichaudi
(d'Orbigny 1842)
|
||||||||||
Gastropoda
- Neogastropoda
- Olivellidae
|
||||||||||
Agaronia inca n. sp.
|
||||||||||
Gastropoda
- Neogastropoda
- Buccinidae
|
||||||||||
Pseudoliva parinaensis
|
||||||||||
Subspecies: Pseudoliva parinaensis samanica | ||||||||||
Pseudoliva coronaria
Olsson 1930
|
||||||||||
Dorsanum lagunitensis
(Woods 1922)
|
||||||||||
Tritonidea staufti n. sp.
Olsson 1928
|
||||||||||
recombined as Cominella staufti | ||||||||||
Gastropoda
- Neogastropoda
- Fasciolariidae
|
||||||||||
Melongena (Pugilina) oedicnema n. sp.
Olsson 1928
|
||||||||||
recombined as Lamarckofusus oedicnema | ||||||||||
Peruficus lagunitensis
Olsson 1929
|
||||||||||
recombined as Glyptostyla lagunitensis | ||||||||||
Mancorus grabaui
Olsson 1931
|
||||||||||
Gastropoda
- Neogastropoda
- Melongenidae
|
||||||||||
Melongena (Cornulina) laevifusoides n. sp.
|
||||||||||
original and current combination Cornulina | ||||||||||
Gastropoda
- Neogastropoda
- Conidae
|
||||||||||
Conus chiraensis
Olsson 1930
|
||||||||||
recombined as Conus sauridens chiraensis | ||||||||||
Gastropoda
- Neogastropoda
- Turbinellidae
|
||||||||||
Xancus peruvianus
Olsson 1928
|
||||||||||
Gastropoda
- Neogastropoda
- Volutidae
|
||||||||||
Voluta (Peruluta) mancorensis n. sp.
Olsson 1928
|
||||||||||
recombined as Peruluta mancorensis | ||||||||||
Gastropoda
- Naticidae
|
||||||||||
Polinices (Neverita) samanensis n. sp.
Olsson 1928
|
||||||||||
recombined as Neverita samanensis | ||||||||||
Gastropoda
- Heterostropha
- Architectonicidae
|
||||||||||
Architectonica chira
|
||||||||||
Architectonica sullana n. sp.
Olsson 1928
|
||||||||||
Bivalvia
- Arcida
- Arcidae
|
||||||||||
Arca (Argina) samanensis
Olsson 1929
|
||||||||||
recombined as Arginella samanensis | ||||||||||
Arca (Argina) sullanensis
Woods 1922
|
||||||||||
recombined as Arginopsis sullanensis | ||||||||||
Bivalvia
- Ostreida
- Pteriidae
|
||||||||||
Pteria sp.
Scopoli 1777
|
||||||||||
Bivalvia
- Ostreida
- Ostreidae
|
||||||||||
Ostrea samanensis n. sp.
Olsson 1928
|
||||||||||
Bivalvia
- Mytilida
- Mytilidae
|
||||||||||
Mytilus sp.
Linnaeus 1758
|
||||||||||
Bivalvia
- Lucinida
- Lucinidae
|
||||||||||
Phacoides (Miltha) patensis
|
||||||||||
spelled with current rank as Miltha | ||||||||||
Bivalvia
- Pholadida
- Raetomyidae
|
||||||||||
Amotapus arbolensis
(Woods 1922)
|
||||||||||
Bivalvia
- Pholadida
- Corbulidae
|
||||||||||
Corbula tangara n. sp.
Olsson 1928
|
||||||||||
recombined as Juliacorbula tangara | ||||||||||
Bivalvia
- Cardiida
- Veneridae
|
||||||||||
Pitaria (Lamelliconcha) samanensis n. sp.
Olsson 1928
|
||||||||||
recombined as Lamelliconcha samanensis | ||||||||||
Clementia peruviana
Olsson 1928
|
||||||||||
recombined as Clementia (Egesta) peruviana | ||||||||||
Macrocallista inca n. sp.
Olsson 1928
|
||||||||||
Bivalvia
- Cardiida
- Mactridae
|
||||||||||
Spisula (Oxyperas) callistoides
Olsson 1928
|
||||||||||
recombined as Oxyperas callistoides | ||||||||||
Bivalvia
- Cardiida
- Cardiidae
|
||||||||||
Cardium (Trigoniocardia) samanicum n. sp.
Olsson 1928
|
||||||||||
recombined as Trigoniocardia (Trigoniocardia) samanicum | ||||||||||
Bivalvia
- Cardiida
- Tellinidae
|
||||||||||
Tellina sp.
Linnaeus 1758
|
||||||||||
Bivalvia
- Solenida
- Solenidae
|
||||||||||
Solen sp.
Linnaeus 1758
|
||||||||||
Bivalvia
- Carditida
- Carditidae
|
||||||||||
Venericardia planicosta
Lamarck 1801
|
||||||||||
recombined as Venericor planicosta | ||||||||||
SUBSPECIES: Venericardia planicosta samanensis | ||||||||||
see common names |
Geography
Country: | Peru | State/province: | Piura |
Coordinates: | 4.8° South, 80.8° West (view map) | ||
Paleocoordinates: | 7.3° South, 73.6° West | ||
Basis of coordinate: | based on nearby landmark | ||
Geographic resolution: | local area |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
Key time interval: | Late/Upper Eocene | ||
Age range of interval: | 37.20000 - 33.90000 m.y. ago |
Stratigraphy
Formation: | Saman | ||||
Stratigraphic resolution: | formation | ||||
Stratigraphy comments: LITHOSTRATIGRAPHY: From the Saman Fm, which regionally overlies the Restin Fm of the Parinas Gp (Middle Eocene). AGE: Late Eocene (p. 9), on the basis of molluscan biostratigraphy. 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? STRATIGRAPHIC POSITION: From unknown position within formation. |
Lithology and environment
Primary lithology: | fine poorly lithified argillaceous sandstone |
Secondary lithology: | poorly lithified conglomerate |
Includes fossils? | Y |
Includes fossils? | Y |
Lithology description: Sandstone and conglomerates, becoming more argillaceous and fine-grained towards the top. Judged to be at best poorly lithified from figured specimens. All specimens have matrix remaining in apertures, suggesting some lithification, but none remain unsegregated from hand specimens or slabs of rock, suggesting that they are somewhat unlithified. | |
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 my presumably be the AMNH of PRI collections. Because of uncertaintly this field is left ommited. | |
Taxonomic list comments:Exhaustive for Mollusca. |
Metadata
Database number: | 52523 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2005-08-10 11:15:48 | Last modified: | 2013-11-25 13:37:23 |
Access level: | the public | Released: | 2005-08-10 11:15:48 |
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] |
Secondary references:
17609 | A. A. Olsson. 1928. Contributions to the Tertiary paleontology of northern Peru: Part 1. Bulletins of American Paleontology 14(52) [A. Miller/A. Hendy] |