Where: Cajamarca, Peru (7.2° S, 78.5° W: paleocoordinates 12.9° S, 50.9° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Chulec Formation, Albian (112.0 - 99.6 Ma)
• Collection from a 20 m thick shale unit, lying below the Pariatambo Formation (late middle Albian) and 280 m above the Inca Formation (lower Albian). The Chulec Formation varies in thickness significantly through the regions, ranging from 25 to 500 m in thickness. The formation does appear to have a diachronous base, and in places ranges from Aptian to early Albian at its base, but in most places the formation is considered to fall completely within the middle Albian.
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, shelly/skeletal, red, yellow shale and lithified, concretionary, yellow, argillaceous limestone
Size class: macrofossils
Reposited in the AMNH
Collection methods: quarrying,
• Collections reposited at AMNH.
Primary reference: V.E. Benavides-Caceres. 1956. Cretaceous system in northern Peru. Bulletin of the American Museum of Natural History 108(4):1-493 [A. Miller/A. Hendy] more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 56987: authorized by Austin Hendy, entered by Austin Hendy on 30.11.2005
Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)