DV 509-2 [Chilcatay Fm] (Miocene of Peru)

Where: Peru (14.7° S, 75.3° W: paleocoordinates 15.6° S, 71.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Chilcatay Formation, Burdigalian (20.4 - 16.0 Ma)

• Originally early Miocene

•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: coastal; 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 UCMP

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: general faunal/floral analysis

PaleoDB collection 41614: 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.
Gastropoda
 Cerithioidea - Turritellidae
Turritella woodsi Lisson 1925 turret shell
Bivalvia
 Carditida - Crassatellidae
Eucrassatella sp. Iredale 1924 clam