DV 509-3 [Chilcatay Fm] (Eocene of Peru)

Where: Peru (14.7° S, 75.3° W: paleocoordinates 17.0° S, 67.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Yamaque Formation, Late/Upper Eocene (37.2 - 33.9 Ma)

• STRATIGRAPHIC RELATIONS: From the Chilcatay Fm, which regionally, unconformably overlies the Otuma Fm (Oligocene) and is unconformably overlain by the Pisco Fm (Middle Miocene-Late Pliocene). AGE: Late Eocene on the basis of radiometric dates. STRATIGRAPHIC POSITION: From sandstones near base of section, above bedrock.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone

• ENVIRONMENT: Not stated in text, but appears to be shallow marine siliciclastic.
• SPECIFIC LITHOLOGY: Sandstone. LITHIFICATION. Lithified, assumed on the basis of figures specimens and age.

Size class: macrofossils

Preservation: original aragonite, original calcite

Collected by DeVries; reposited in the UMMP

Collection methods: surface (in situ),

• COLLECTOR: DeVries. REPOSITORY: Either UWBM, Washington, or MUSM, Peru.

Primary reference: T. J. DeVries. 1998. Oligocene deposition and Cenozoic sequence boundaries in the Pisco Basin (Peru). Journal of South American Earth Sciences 11(3):217-231 [A. Miller/A. Hendy/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 41615: authorized by Austin Hendy, entered by Austin Hendy on 18.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to taxon described in publication, and supporting publications NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution taxonomic assignments.
Bivalvia
 Pectinida - Pectinoidae
Chlamys sp. Röding 1798 scallop
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
Gastropoda
 Neogastropoda - Conidae
Conus sp. Linnaeus 1758 cone shell
 Ficoidea - Ficidae
Ficus distans Sowerby 1846 fig shell