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Sud-Sacaco West (SAS) horizon) (Miocene of Peru)

Where: Peru (15.6° S, 74.7° W: paleocoordinates 15.8° S, 73.3° W)

• coordinate stated in text

• local area-level geographic resolution

When: Pisco Formation, Messinian (7.2 - 5.3 Ma)

• See Muizon and de Vries (1985). Basal most Pliocene. A tuff layer from the Sacaco level, above the Sud-Sacaco level, has been dated radiometrically (K/Ar) to 3.9 Myr (de Muizon & Bellon, 1980, 1986). Ehret et al (2012) updated the age to Messinian (5.93 Sr isotopes) rather than Zanclean.

• bed-level stratigraphic resolution

Environment/lithology: foreshore; diatomaceous siltstone

• SAS (Montemar) horizon. Shore environment with beaches and reefs exposed to marine currents. High sedimentation rate, shallow-to-deep shelf, upwelling

Size class: macrofossils

Preservation: original phosphate

Primary reference: C. Muizon. 1983. Pliopontos littoralis un nouveau Platanistidae Cetacea du Pliocene de la cote peruvienne. Comptes Rendus de l'Academie des Sciences Paris Serie II (296)1101-1104 [M. Uhen/N. Pyenson/N. Pyenson] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 13079: authorized by Mark Uhen, entered by Mark Uhen on 18.01.2002, edited by Nick Pyenson

Creative Commons license: CC BY (attribution)