Where: Piura, Peru (4.8° S, 80.8° W: paleocoordinates 7.3° S, 73.6° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Saman Formation, Late/Upper Eocene (37.2 - 33.9 Ma)
• 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.
• formation-level stratigraphic resolution
Environment/lithology: coastal; poorly lithified, fine-grained, argillaceous sandstone and poorly lithified conglomerate
Size class: macrofossils
Collection methods: quarrying,
• No museum repositories are reported, but material my presumably be the AMNH of PRI collections. Because of uncertaintly this field is left ommited.
Primary reference: 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]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 52523: authorized by Austin Hendy, entered by Austin Hendy on 10.08.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Bivalvia | |
Mytilus sp. Linnaeus 1758 mussel | |
Ostrea samanensis n. sp.
Ostrea samanensis n. sp. Olsson 1928 oyster | |
Pteria sp. Scopoli 1777 pearl oyster | |
"Arca (Argina) samanensis" = Arginella samanensis, "Arca (Argina) sullanensis" = Arginopsis sullanensis
"Arca (Argina) samanensis" = Arginella samanensis Olsson 1929 clam
"Arca (Argina) sullanensis" = Arginopsis sullanensis Woods 1922 clam | |
"Venericardia planicosta" = Venericor planicosta
"Venericardia planicosta" = Venericor planicosta Lamarck 1801 clam SUBSPECIES: Venericardia planicosta samanensis
| |
Solen sp. Linnaeus 1758 clam | |
"Cardium (Trigoniocardia) samanicum n. sp." = Trigoniocardia (Trigoniocardia) samanicum
"Cardium (Trigoniocardia) samanicum n. sp." = Trigoniocardia (Trigoniocardia) samanicum Olsson 1928 cockle | |
Tellina sp. Linnaeus 1758 tellin clam | |
"Spisula (Oxyperas) callistoides" = Oxyperas callistoides
"Spisula (Oxyperas) callistoides" = Oxyperas callistoides Olsson 1928 clam | |
Macrocallista inca n. sp., "Clementia peruviana" = Clementia (Egesta) peruviana, "Pitaria (Lamelliconcha) samanensis n. sp." = Lamelliconcha samanensis
Macrocallista inca n. sp. Olsson 1928 venus clam
"Clementia peruviana" = Clementia (Egesta) peruviana Olsson 1928 venus clam
"Pitaria (Lamelliconcha) samanensis n. sp." = Lamelliconcha samanensis Olsson 1928 venus clam | |
Amotapus arbolensis Woods 1922 clam | |
"Corbula tangara n. sp." = Juliacorbula tangara
"Corbula tangara n. sp." = Juliacorbula tangara Olsson 1928 clam | |
"Phacoides (Miltha) patensis" = Miltha
"Phacoides (Miltha) patensis" = Miltha clam | |
Gastropoda | |
Architectonica chira sundial
Architectonica sullana n. sp. Olsson 1928 sundial | |
Crepidula sp., Calyptraea saxosa n. sp.
Crepidula sp. Lamarck 1799 slipper shell | |
Ampullina chira snail
Ampullina ortoni Gabb 1870 snail | |
Ectinochilus gaudichaudi d'Orbigny 1842 true conch | |
Xancus peruvianus Olsson 1928 snail | |
"Voluta (Peruluta) mancorensis n. sp." = Peruluta mancorensis
"Voluta (Peruluta) mancorensis n. sp." = Peruluta mancorensis Olsson 1928 volute | |
Agaronia inca n. sp.
Agaronia inca n. sp. snail | |
"Conus chiraensis" = Conus sauridens chiraensis
"Conus chiraensis" = Conus sauridens chiraensis Olsson 1930 cone shell | |
"Melongena (Cornulina) laevifusoides n. sp." = Cornulina
"Melongena (Cornulina) laevifusoides n. sp." = Cornulina snail | |
"Tritonidea staufti n. sp." = Cominella staufti, Pseudoliva parinaensis, Pseudoliva coronaria, Dorsanum lagunitensis
"Tritonidea staufti n. sp." = Cominella staufti Olsson 1928 true whelk
Pseudoliva coronaria Olsson 1930 true whelk
Dorsanum lagunitensis Woods 1922 true whelk | |
"Melongena (Pugilina) oedicnema n. sp." = Lamarckofusus oedicnema, "Peruficus lagunitensis" = Glyptostyla lagunitensis, Mancorus grabaui
"Melongena (Pugilina) oedicnema n. sp." = Lamarckofusus oedicnema Olsson 1928 snail
"Peruficus lagunitensis" = Glyptostyla lagunitensis Olsson 1929 snail
Mancorus grabaui Olsson 1931 snail | |
"Polinices (Neverita) samanensis n. sp." = Neverita samanensis
"Polinices (Neverita) samanensis n. sp." = Neverita samanensis Olsson 1928 moon snail | |
Turritella boughtoni n. sp. Olsson 1928 turret shell
Turritella chira n. sp. Olsson 1928 turret shell
Turritella samanensis n. sp. Olsson 1928 turret shell | |
? Telescopium samanense n. sp.
? Telescopium samanense n. sp. Olsson 1928 horn snail | |
"Cerithium (Iddingsia) laeviusculum" = Iddingsella laeviusculum
"Cerithium (Iddingsia) laeviusculum" = Iddingsella laeviusculum Gabb 1869 cerith snail | |
Cephalopoda | |
|