Where: Argentina (41.7° S, 71.4° W: paleocoordinates 43.6° S, 63.1° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Rio Foyel Formation, Early/Lower Oligocene (33.9 - 28.4 Ma)
• STRATIGRAPHIC RELATIONS: From Rio Foyel Fm. Unknown stratigraphic relations. THICKNESS: From lower 7 m of 18 m thick section. AGE: Considered to be Late Eocene to Early Oligocene according to foraminiferal, ostracod and microfloral biostratigraphy by Chiesa and Camacho (2001). Griffin et al. (2004) indicated an Early Oligocene age with Sr dates. STRATIGRAPHIC POSITION: From lower part of formation.
• bed-level stratigraphic resolution
Environment/lithology: offshore; lithified, sandy, calcareous shale
Size class: macrofossils
Collection methods: surface (in situ),
• COLLECTOR: Unknown collector, possibly Rossi de García and Levy (c. 1980's). REPOSITORY: Unknown; some described material is reposited at CIRGEO (unknown location).
Primary reference: J. O. Chiesa and H. H. Camacho. 2001. Invertebrados marino Eocenos de la parte de Río Negro, Argentina. Revista Española de Paleontología 16(2):299-316 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 71599: authorized by Austin Hendy, entered by Austin Hendy on 30.04.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Modiolus sp. Lamarck 1801 mussel | |
Atrina cf. rioturbiensis oyster | |
Chlamys hupeanus, "Zygochlamys aff. geminatus" = Zygochlamys geminata
Chlamys hupeanus Philippi 1887 scallop
"Zygochlamys aff. geminatus" = Zygochlamys geminata Sowerby 1846 scallop | |
| |
Lahillia angulata Philippi 1887 clam | |
Tellina ovalleana tellin clam | |
Lutraria cf. vetula clam | |
Venus aff. ovallei venus clam | |
"Miltha promaucana" = Lucinoma promaucana
| |
Gastropoda | |
"Proscaphella triplicata" = Palaeomelon triplicata, Voluta sp.
"Proscaphella triplicata" = Palaeomelon triplicata Sowerby 1846 volute
Voluta sp. Linnaeaus 1758 volute | |
Natica sp. Scopoli 1777 moon snail | |
Turritella sp. Lamarck 1799 turret shell | |
Cerithium cf. armoricense cerith snail | |
"Tudicula sp." = Tudicla
"Tudicula sp." = Tudicla Röding 1798 snail |