Where: Peru (8.8° S, 74.5° W: paleocoordinates 14.5° S, 51.9° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Chonta Formation, Turonian to Turonian (93.9 - 86.3 Ma)
• LITHOSTRATIGRAPHY: From the Chonta Fm, which overlies the Oriente Fm, and is overlain by the Vivian Fm. AGE: Turonian-Coniacian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within formation.
• group of beds-level stratigraphic resolution
Environment/lithology: marine; black shale and siltstone
Size class: macrofossils
Collection methods: surface (in situ),
• COLLECTOR: Probably Knetchtel and others. REPOSITORY: Unknown.
Primary reference: B. Kummel. 1948. Geological reconnaissance of the Contamana region, Peru. Geological Society America Bulletin 59:1217-1265 [A. Hendy/A. Hendy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 88672: authorized by Austin Hendy, entered by Austin Hendy on 17.04.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Echinoidea | |
"Hemiaster fourneli" = Mecaster fourneli, Hemiaster steinmanni
"Hemiaster fourneli" = Mecaster fourneli Agassiz and Dessor 1847 heart urchin
Hemiaster steinmanni heart urchin | |
Bivalvia | |
Pholadomya qunuana clam | |
Liopistha aff. molli clam | |
Cardium centralis cockle
Cardium pulchrum cockle | |
Roudairia intermedia clam | |
"Ostrea nicaisei" = Nicaisolopha nicaisei
"Ostrea nicaisei" = Nicaisolopha nicaisei Coquand 1862 oyster | |
"Lima grenieri" = Lima (Plagiostoma) grenieri Coquand 1862 file clam
Lima ellsworthi file clam
Lima shortani file clam | |
| |
Cephalopoda | |
Barroisiceras bruggeni ammonite | |
Buchiceras bilobatum Hyatt 1875 ammonite | |
| |
Tissotia andii, Tissotia roscheni, Tissotia obesa, Tissotia singewaldi, Tissotia steimanni, Tissotia halli, Tissotia fourneli, "Tissotia auressensis" = Metatissotia auressensis
Tissotia andii ammonite
Tissotia roscheni ammonite
Tissotia obesa ammonite
Tissotia singewaldi ammonite
Tissotia steimanni ammonite
Tissotia halli Knechtel 1947 ammonite
Tissotia fourneli Bayle 1849 ammonite
"Tissotia auressensis" = Metatissotia auressensis Peron 1897 ammonite | |
Paralenticeras sierverei, Lenticeras gerhardti, Lenticeras andii, "Lenticeras baltae" = Lenticeras baltai
Paralenticeras sierverei ammonite
Lenticeras gerhardti ammonite
Lenticeras andii ammonite
"Lenticeras baltae" = Lenticeras baltai Lissón 1908 ammonite | |
Puzosia guadama ammonite | |
Gastropoda | |
Turritella sp. Lamarck 1799 turret shell | |
Natica lassali moon snail |