Site 686 ODP Leg 112 Late Pleistocene Peru (Pleistocene of Peru)

Where: Peru (13.5° S, 76.9° W: paleocoordinates 13.5° S, 76.7° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Pleistocene (2.6 - 0.0 Ma)

Environment/lithology: marine; unlithified, diatomaceous, gray, green mudstone

• The benthic foraminiferal assemblage indicate an outer shelf or slightly shallower environment. However, the concentration of Calyptraea shells in diatomaceous muds, the poor preservation of adult specimens, displaced nannoplankton, diatoms, and silicoflagellates from the lower Miocene and middle to upper Eocene suggest these assemblages have been transported from shallower waters.
• Mollusks were encountered at several levels including a olive gray diatomaceous mud.

Size classes: macrofossils, microfossils

Collection methods: core,

Primary reference: H. Hagn and E. Martini. 1990. A lower Eocene shell bed and some Quaternary mollusks from ODP Leg 112 off Peru. Proceedings of the Ocean Drilling Program, Scientific Results 112:329-333 [L. Ivany/C. Visaggi/C. Visaggi]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 42705: authorized by Linda Ivany, entered by Christy Visaggi on 04.08.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Taxonomic list compiled from text and figures.
Show authors, comments, and common names
Gastropoda
 Neotaenioglossa - Calyptraeidae
Calyptraea sp.
Calyptraea sp. Lamarck 1799 slipper shell
 Heterostropha - Pyramidellidae
Odostomia sp.
Odostomia sp. Fleming 1817 snail
Bivalvia
 Cardiida - Veneridae
Veneridae indet.
Veneridae indet. Rafinesque 1815 venus clam
Foraminifera
 Foraminiferida -
"Foraminiferida indet." = Foraminifera
"Foraminiferida indet." = Foraminifera Eichwald 1830 foram