Where: Peru (3.7° S, 80.7° W: paleocoordinates 4.9° S, 76.4° W)
• coordinate estimated from map
• local area-level geographic resolution
When: Variegated Beds Member (Zorritos Formation), Early/Lower Miocene (23.0 - 16.0 Ma)
• middle unit of Zorritos Formation
• group of beds-level stratigraphic resolution
Environment/lithology: paralic; green, yellow shale and red, conglomeratic, carbonaceous sandstone
•marine fossils are worn
•seams of rather pure cannel coal may be present while fossil layers are frequent
•deformed beds probably due to intraformational creep and surface slumping
Primary reference: A. A. Olsson. 1932. Contributions to the Tertiary Paleontology of Northern Peru: Part 5, Miocene Mollusca. Bulletins of American Paleontology 19(68):1-272 [A. Miller/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 66177: authorized by Linda Ivany, entered by Linda Ivany on 03.10.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Cerithium infranodatum Spieker 1922 cerith snail
Cerithium grillanum Spieker 1922 cerith snail | |
"Turritella cf. infracarinata" = Turritella (Turritella) infracarinata, Turritella varicosta
"Turritella cf. infracarinata" = Turritella (Turritella) infracarinata Grzybowski 1899 turret shell
Turritella varicosta Spieker 1922 turret shell | |
Potamides bocapanensis, "Potamides ormei" = Potamides suprasulcatus
Potamides bocapanensis horn snail | |
Crepidula sp. Lamarck 1799 slipper shell | |
"Polinices (Polinices) coronis" = Polinices stanislasmeunieri
"Polinices (Polinices) coronis" = Polinices stanislasmeunieri Maury 1917 moon snail | |
Northia guttifera true whelk | |
Melongena columbiana snail | |
"Conus (Dendroconus) bravoi" = Conus bravoi, "Conus (Dendroconus) cf. williamgabbi" = Conus williamgabbi
"Conus (Dendroconus) bravoi" = Conus bravoi Spieker 1922 cone shell
"Conus (Dendroconus) cf. williamgabbi" = Conus williamgabbi Maury 1917 cone shell | |
Bivalvia | |
Mytilus sp. Linnaeus 1758 mussel | |
"Anomia berryi" = Anomia peruviana
"Anomia berryi" = Anomia peruviana d'Orbigny 1846 jingle | |
Ostrea sp. Linnaeus 1758 oyster | |
"Arca (Noetia) retractata" = Noetia
"Arca (Noetia) retractata" = Noetia clam | |
Arca (Noetia) cholana, "Arca (Senilia) chiriquiensis" = Anadara (Grandiarca) chiriquiensis
Arca (Noetia) cholana Spieker 1922 ark
"Arca (Senilia) chiriquiensis" = Anadara (Grandiarca) chiriquiensis Gabb 1861 ark | |
Macoma sp. Leach 1819 tellin clam | |
Chione (Chionopsis) costaricensis Olsson 1922 venus clam | |
"Labiosa (Raeta) undulata" = Raeta undulata
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