Buenos Aires - southern bank of Rio Cotuhe, Pebas Fm. (Miocene to of Colombia)

Where: Colombia (3.4° S, 70.4° W: paleocoordinates 3.8° S, 67.9° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Pebas Formation, Middle Miocene to Middle Miocene (16.0 - 7.2 Ma)

• formation-level stratigraphic resolution

Environment/lithology: lacustrine - large; unlithified, blue shale and unlithified, fine-grained mudstone

• The formation was deposited in a giant, long-lived freshwater lake, that was connected to the sea, and experienced episodic marine invasions (Vonhof et al., 1998).
• Dominated by blue smectite clays, immature fine sands and lignites

Size classes: macrofossils, mesofossils

Primary reference: G. J. Vermeij and F. P. Wesselingh. 2002. Neogastropod molluscs from the Miocene of western Amazonia, with comments on marine to freshwater transitions in molluscs. Journal of Paleontology 76(2):265-270 [N. Bonuso/P. Monarrez]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 142155: authorized by Nicole Bonuso, entered by Pedro Monarrez on 06.04.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Neogastropoda - Nassariidae
? Nassarius reductus
? Nassarius reductus Vermeij and Wesselingh 2002 snail
 Neogastropoda - Melongenidae
Melongena woodwardi
Melongena woodwardi Roxo 1924 snail