DV 471-1, Cerro Poroma (Miocene of Peru)

Where: Peru (15.0° S, 75.0° W: paleocoordinates 15.9° S, 70.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

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

• Originally late Oligocene

•STRATIGRAPHIC RELATIONS: From the Chilcatay Fm, which unconformably overlies crystalline basement. AGE: Late Oligocene, on the basis of K/Ar dates, siliceous microfossil zonation, and molluscan biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within section.

• bed-level stratigraphic resolution

Environment/lithology: coastal; unlithified, pebbly, shelly/skeletal sandstone

• ENVIRONMENT: Not discussed in text, but appears to be from shallow marine siliciclastic setting.
• SPECIFIC LITHOLOGY: Bioclastic sandstone and gravel. LITHIFICATION: Unlithified based on figured specimens.

Size class: macrofossils

Collected by DeVries; reposited in the UWBM

Collection methods: surface (in situ),

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

Primary reference: T. J. DeVries. 2007. Cenozoic Nacella (Patellogastropoda: Nacellidae) from Peru and Chile: Filling in the gaps. The Veliger 50(4):274-291 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 89187: authorized by Austin Hendy, entered by Austin Hendy on 08.05.2009

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.
Show authors, comments, and common names
Gastropoda
 Patellida - Nacellidae
Nacella (Patinigera) reicherae