DV 1256, DV 1259, DV 1260 [Camana Fm] (Oligocene of Peru)

Also known as Unit 21, Section J (Pecho, 1983)

Where: Peru (15.9° S, 73.3° W: paleocoordinates 17.5° S, 67.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Camana Formation, Late/Upper Oligocene (28.4 - 23.0 Ma)

• STRATIGRAPHIC DATA: From Camana Formation, which overlies the Lower Moquegua Fm or Paracas Fm (of Caraveli 1983), and is time-transgressive with the Upper Moquegua and Hualillas fms . AGE: Latest Oligocene-early Middle Miocene. Assigned to Late Oligocene by DeVries (2007). STRATIGRAPHIC RELATIONS: Unknown position within formation.

• group of beds-level stratigraphic resolution

Environment/lithology: shoreface; lithified, shelly/skeletal mixed carbonate-siliciclastic sediments

• ENVIRONMENT: Very shallow marine siliciclastic setting.
• SPECIFIC LITHOLOGY: Medium-bedded low-angle cross-bedded coquina. LITHIFICATION: Not stated, but presumed lithified given age and facies relationships.

Size class: macrofossils

Collected by DeVries; reposited in the UWBM

Collection methods: surface (in situ),

• COLLECTORS: T.J. DeVries (multiple years). REPOSITORY: UWBM, Seattle, or Mueo de Historia Natural, Universidad Ricardo Palma, Lima, Peru.

Primary reference: T. J. DeVries. 2001. Molluscan evidence for an Oligocene-Miocene age of 'Paracas' beds in southern Peru. Boletín de la Sociedad Geológica del Peru 92:57-65 [A. Hendy/A. Hendy/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 76639: authorized by Austin Hendy, entered by Austin Hendy on 27.11.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• COMPLETENESS: Not exhaustive but comprising common and characteristic forms. NOMENCLATURE: Not an authoritative publication but with modern nomenclature and generally with species-level assignments.
Gastropoda
 Cerithioidea - Turritellidae
Turritella praenuncia turret shell
SUBSPECIES: T. praenuncia cruziana
Turritella riverae DeVries 2007 turret shell
Turritella woodsi Lisson 1925 turret shell
 Neogastropoda - Olividae
"Olivancillaria tumorifera" = Olivancillaria claneophila
"Olivancillaria tumorifera" = Olivancillaria claneophila Duclos 1835 olive snail
 Neogastropoda - Pseudolividae
Testallium cepa Sowerby 1846 snail
Bivalvia
 Carditida - Crassatellidae
"Eucrassatella ponderosa" = Tilicrassatella ponderosa
"Eucrassatella ponderosa" = Tilicrassatella ponderosa Philippi 1887 clam