Where: Esmeraldas, Ecuador (0.8° N, 78.9° W: paleocoordinates 0.4° N, 77.3° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Picaderos Formation (Santiago Group), Late/Upper Miocene (11.6 - 5.3 Ma)

• Overlies the Angostura sandstones and conglomerates 100meters thick

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified, tuffaceous, green, blue shale

Size class: macrofossils

Collection methods: About 16 species are recorded from the formation which is probably only a small percentage of the whole molluscan fauna in the beds.

Primary reference: A. A. Olsson. 1964. Neogene Mollusks From Northwestern Ecuador [A. Miller/K. Bulinski]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 60675: authorized by Arnold Miller, entered by Kate Bulinski on 19.05.2006, edited by Austin Hendy

Creative Commons license: CC BY (attribution)