DV 841-1 [Chilcatay Fm] (Miocene of Peru)

Where: Peru (14.0° S, 76.2° W: paleocoordinates 14.9° S, 72.1° 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: latest Oligocene-early Middle Miocene, for which justification is not stated. Overlain by the Prisco Fm, for which K/Ar dates, siliceous microfossil zonation, and molluscan biostratigraphy supports a Middle Miocene age at its oldest. The collection is placed by the authors within the Early Miocene. STRATIGRAPHIC POSITION: From sandstone bed on western face of long outcrop of tilted strata in unknown part of formation.

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, coarse-grained sandstone

• ENVIRONMENT: Not discussed in text, but appears to be from relatively shallow marine siliciclastic setting.
• SPECIFIC LITHOLOGY: Coarse grained sandstone. LITHIFICATION: Lithified based on figured specimens.

Size class: macrofossils

Preservation: original aragonite

Collected by DeVries; reposited in the UWBM

Collection methods: surface (in situ),

• COLLECTOR: DeVries. REPOSITORY: UWMB, Washington.

Primary reference: T. J. DeVries. 2007. Cenozoic Turritellidae (Gastropoda) from southern Peru. Journal of Paleontology 81(2):331-351 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 80453: authorized by Austin Hendy, entered by Austin Hendy on 20.04.2008

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 cruzadoi DeVries 2007 turret shell