Where: Peru (14.6° S, 75.7° W: paleocoordinates 15.5° S, 71.5° 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, is unconformably overlain by the Pisco Fm (Middle Miocene). AGE: late Oligocene to early Miocene on the basis of K/Ar dates, siliceous microfossil zonation, and molluscan biostratigraphy supports. Stated in text to be of Early Miocene age. STRATIGRAPHIC POSITION: From base of section.
• bed-level stratigraphic resolution
Environment/lithology: coastal; sandstone
Size class: macrofossils
Collection methods: COLLECTOR: Not stated in text. REPOSITORY: Unknown.
Primary reference: A. Alván, J. Apolín, and C. Chacaltana. 2004. Los dientes de Seláceos (Condrichthyies) y su aplicaión estratigráfica en Las Lomas de Ullujaya (Ica, Perú). XIII Congreso Peruano de Geología. Resúmenes Extendidos 595-598 [A. Hendy/A. Hendy/A. Hendy]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 113251: authorized by Austin Hendy, entered by Austin Hendy on 24.07.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Chione sp. von Mühlfield 1811 venus clam |