Where: Ica, Peru (14.7° S, 75.6° W: paleocoordinates 17.2° S, 67.6° W)

When: Yumaque Member (Paracas Formation), Bartonian (41.3 - 38.0 Ma)

• geological age is well constrained between 39.8 million and 37.84 million years ago (Bartonian, middle Eocene) through biostratigraphy and 39Ar–40Ar dating on tephra layer.

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Primary reference: G. Bianucci, O. Lambert, M. Urbina, M. Merella, A. Collareta, R. Bennion, R. Salas-Gismondi, A. Benites-Palomino, K. Post, C. Muizon, G. Bosio, C. Di Celma, E. Malinverno, P. R. Pierantoni, I. M. Villa and E. Amson. 2023. A heavyweight early whale pushes the boundaries of vertebrate morphology. Nature [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 231077: authorized by Mark Uhen, entered by Mark Uhen on 02.08.2023

Creative Commons license: CC BY (attribution)