Where: Esmeraldas, Ecuador (1.1° N, 79.0° W: paleocoordinates 0.3° N, 76.2° W)
• coordinate based on political unit
• outcrop-level geographic resolution
When: Borbon Formation (Santiago Group), Middle Miocene (16.0 - 11.6 Ma)
• Possibly equivalent tot he upper Esmeraldas (Punta Gorda facies) and the Tumbez of Peru.
• formation-level stratigraphic resolution
Environment/lithology: lagoonal; lithified, tuffaceous shale and lithified sandstone
Size class: macrofossils
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 60751: authorized by Arnold Miller, entered by Kate Bulinski on 22.05.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
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Conus cf. patricius Hinds 1843 cone shell | |
"Marginella sapotilla" = Prunum (Prunum) sapotilla
"Marginella sapotilla" = Prunum (Prunum) sapotilla Hinds 1844 margin shell | |
"Cancellaria (Pyruclia) lacondamini" = Pyruclia lacondamini
| |
Bivalvia | |
| |
Cyclinella cf. beteyensis Olsson 1922 venus clam | |
Mulinia pallida Broderip and Sowerby 1829 clam
Harvella elegans Sowerby 1825 clam | |
Raeta undulata Gould 1851 clam | |
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