Where: Peru (14.3° S, 75.9° W: paleocoordinates 14.8° S, 73.8° W)
• coordinate stated in text
• hand sample-level geographic resolution
When: Pisco Formation, Tortonian (11.6 - 7.2 Ma)
• The ziphiid skeleton with associated fish remains examined here originates in the lower allomember
•
•These fossiliferous deposits were first tentatively dated from the late Middle to early Late Miocene (Serravallian to early Tortonian, ca 13–11 Ma [9,18]). The recent record of Lithodesmium reynoldsii, a diatom species with a range between 9.9 and 8.9 Ma [19], points to a Late Miocene (Tortonian) age [16].
Environment/lithology: marine; lithified dolomite and poorly lithified diatomite
•its basal portion. This stratigraphic section, including near- shore conglomerates, fine-grained sandstones, diatomites and diatomaceous mudstones, a few dolomitic horizons, and volcanic ash layers, can be subdivided into two overall fining-upwards packages (allomembers) separated by an intraformational angu- lar unconformity [16] (figure 1).
Size class: macrofossils
Preservation: concretion
Collection methods: quarrying,
• MUSM, Museo de Historia Natural de la Universidad Nacional Mayor de San Marcos, Lima
Primary reference: B. Ramassamy, O. Lambert, A. Collareta, M. Urbina, and G. Bianucci. 2018. Description of the skeleton of the fossil beaked whale Messapicetus gregarius: searching potential proxies for deep-diving abilities. Fossil Record 21:11-323 [M. Uhen/M. Uhen]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 191217: authorized by Mark Uhen, entered by Mark Uhen on 16.01.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Messapicetus gregarius Bianucci et al. 2010 beaked whale |