Where: Peru (4.5° S, 77.6° W: paleocoordinates 10.0° S, 49.6° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Chonta Formation, Albian (113.0 - 100.5 Ma)
• LITHOSTRATIGRAPHY: From the Chonta Fm, which overlies the Oriente Fm, and is overlain by the Vivian Fm. AGE: Albian, 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 88673: authorized by Austin Hendy, entered by Austin Hendy on 17.04.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Knemiceras raimondi, "Knemiceras semicostatum" = Glottoceras semicostatum, "Knemiceras attenuatum" = Glottoceras attenuatum, "Knemiceras crassinodosum" = Glottoceras crassinodosum, "Knemiceras moorei" = Glottoceras moorei, "Knemiceras crassicostatum" = Glottoceras crassicostatum
Knemiceras raimondi ammonite
"Knemiceras semicostatum" = Glottoceras semicostatum Sommermeier 1910 ammonite
"Knemiceras attenuatum" = Glottoceras attenuatum Hyatt 1875 ammonite
"Knemiceras crassinodosum" = Glottoceras crassinodosum Sommermeier 1910 ammonite
"Knemiceras moorei" = Glottoceras moorei Knechtel 1947 ammonite
"Knemiceras crassicostatum" = Glottoceras crassicostatum Sommermeier 1910 ammonite | |
Brancoceras sp. Steinmann 1881 ammonite | |
"Lyelliceras mathewsi" = Prolyelliceras mathewsi, "Lyelliceras ulrichi" = Prolyelliceras ulrichi
"Lyelliceras mathewsi" = Prolyelliceras mathewsi Knechtel 1947 ammonite
"Lyelliceras ulrichi" = Prolyelliceras ulrichi Knechtel 1947 ammonite | |
"Oxitropidoceras douglasi" = Oxytropidoceras, "Oxitropidoceras (Manuaniceras) bosei" = Oxytropidoceras, "Oxitropidoceras (Manuaniceras) carbonarium" = Oxytropidoceras, "Oxitropidoceras (Manuaniceras) hubbardi" = Oxytropidoceras
"Oxitropidoceras douglasi" = Oxytropidoceras ammonite
"Oxitropidoceras (Manuaniceras) bosei" = Oxytropidoceras ammonite
"Oxitropidoceras (Manuaniceras) carbonarium" = Oxytropidoceras ammonite
"Oxitropidoceras (Manuaniceras) hubbardi" = Oxytropidoceras ammonite | |
Gastropoda | |
Epitonium pongensis wentletrap | |
Bivalvia | |
Arca knechteli ark
Arca megumbona ark | |
"Inoceramus concentricus" = Inoceramus (Actinoceramus) concentricus
"Inoceramus concentricus" = Inoceramus (Actinoceramus) concentricus Parkinson 1819 clam | |
Plicatula singewaldi scallop | |
Exogyra aff. africana Lamarck 1801 oyster | |
Pholadomya pongensis clam | |
Paphia peruana venus clam | |
Protocardia meridionalis cockle
Protocardia aff. hillana Sowerby 1813 cockle | |
Nucula pongensis nut clam |