Where: Colombia (9.8° N, 75.2° W: paleocoordinates 7.2° N, 67.7° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Bartonian (41.3 - 38.0 Ma)
• STRATIGRAPHIC RELATIONS: From a unit referred to as the Carmen section of the Eocene, for which lithostratigraphic relations are unclear. AGE: Eocene, though not clear; age assignment reassigned based on the known biostratigraphic ranges of constituent taxa in more recent literature; here assigned to Bartonian (early Middle Eocene), but it is acknowledged that considerable constituent taxa have known age ranges extending (but not exclusive) to the Late Eocene and Ypresian. STRATIGRAPHIC POSITION: From Horizon F of the Carmen section.
• group of beds-level stratigraphic resolution
Environment/lithology: coastal; poorly lithified, concretionary shale and lithified, concretionary sandstone
Size class: macrofossils
Collected by Anderson
• COLLECTOR: F. Anderson, c. 1920's. REPOSITORY: California Academy of Sciences.
Primary reference: F. M. Anderson. 1928. Notes on Lower Tertiary deposits of Colombia and their molluscan and foraminiferal fauna. Proceedings of the California Academy of Sciences 17(1):1-29 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 88278: authorized by Austin Hendy, entered by Austin Hendy on 06.04.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Foraminifera | |
Nummulites carmenensis n. sp.
Nummulites carmenensis n. sp. Anderson 1928 | |
Anthozoa | |
Goniopora andersoni n. sp.
Goniopora andersoni n. sp. stony coral | |
Gastropoda | |
Solariella cf. louisiana snail | |
Akera bolivarensis n. sp.
Akera bolivarensis n. sp. Anderson 1928 snail | |
"Pseudocrommium carmenensis" = Pachycrommium carmenensis
"Pseudocrommium carmenensis" = Pachycrommium carmenensis Clark and Durham 1946 snail | |
"Calyptraea cf. aperta" = Calyptraea (Trochita) aperta
"Calyptraea cf. aperta" = Calyptraea (Trochita) aperta Solander 1766 slipper shell | |
Cerithiopsis conica snail | |
Lysis sp. Gabb 1864 snail | |
"Sigaretus cf. bilix" = Sinum bilix, Natica sp.
"Sigaretus cf. bilix" = Sinum bilix Conrad 1833 moon snail
Natica sp. Scopoli 1777 moon snail | |
Terebra (Mirula) grabrielensis auger snail | |
"Pleurofusia carmenensis" = Coronia carmenensis
"Pleurofusia carmenensis" = Coronia carmenensis Anderson 1928 turrid | |
"Levifusus cf. pagoda" = Levifusus pagodiformis
"Levifusus cf. pagoda" = Levifusus pagodiformis Heilprin 1881 snail | |
Pseudoliva sp. Swainson 1840 true whelk | |
Clavilithes cf. harrisi Woods 1922 snail | |
Ancilla (Olivula) cf. scamba olive snail
Ancilla (Olivula) staminea Conrad 1832 olive snail | |
Olivancillaria cf. peruviana Woods 1922 snail | |
Athleta (Volutospina) cf. petrosa Conrad 1833 volute | |
Morum (Herculea) caracoli Anderson 1928 snail | |
Ectinochilus olssoni Clark and Durham 1946 true conch | |
"Pyrula cf. juvensis" = Ficus
"Pyrula cf. juvensis" = Ficus fig shell | |
Teinostoma subangulata snail | |
? Eulima sp. Risso 1826 snail | |
Turritella humerosa Conrad 1835 turret shell
Turritella obruta Conrad 1833 turret shell | |
Fossarus (Isapsis) bolivarensis Clark and Durham 1946 snail | |
Scaphopoda | |
Cadulus sp. Philippi 1844 tusk shell | |
Dentalium sp. Linnaeus 1758 tusk shell
Dentalium samanicum tusk shell | |
Bivalvia | |
Nucula andersoni Clark and Durham 1946 nut clam | |
Glycymeris caracoli Anderson 1928 clam | |
Arca sp. Linnaeus 1758 ark | |
"Volupia bolivarensis n. sp." = Lucina (Here) bolivarensis
"Volupia bolivarensis n. sp." = Lucina (Here) bolivarensis Anderson 1928 clam | |
Corbula (Caryocorbula) carmenensis Clark and Durham 1946 clam
Corbula cf. arnoldi Woods 1922 clam | |
Mactra parilis clam | |
"Cytherea perovata" = Callista (Callista) perovata, Callista (Macrocallista) dickersoni
"Cytherea perovata" = Callista (Callista) perovata Conrad 1833 venus clam
Callista (Macrocallista) dickersoni Woods 1922 venus clam | |
Cardium aff. triangulatum cockle | |
Tellina greggi tellin clam
Tellina cf. rostralis tellin clam
Tellina cf. subtriangularis tellin clam | |
Venericardia (Venericor) samanensis Olsson 1928 clam
Venericardia (Glyptoactis) carmenensis Clark and Durham 1946 clam | |
Malacostraca | |
? Xanthopsis sp. M'Coy 1849 stone crab |