Where: Peru (14.4° S, 75.8° W: paleocoordinates 15.3° S, 71.7° 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 unknown position within formation.
• bed-level stratigraphic resolution
Environment/lithology: coastal; lithified, coarse-grained sandstone
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 80465: authorized by Austin Hendy, entered by Austin Hendy on 20.04.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Incatella trilirata Philippi 1887 turret shell |