Where: Ica, Peru (14.6° S, 75.9° W: paleocoordinates 17.0° S, 68.4° W)
• coordinate stated in text
When: NP19/20 nannofossil zone, middle part Member (Yumaque Formation), Priabonian (37.2 - 33.9 Ma)
• Middle part of the Yumaque Formation, 77 m above the base; lower part of calcareous nannofossil zone NP19/20 of Martini ; dated at 36.4 million years ago based on age estimations used by Agnini et al. ; early late Eocene (early Priabonian; see Figures S1A and S1D, Table S1, and STAR Methods for the biostratigraphic and biochronological interpretations).
• member-level stratigraphic resolution
Environment/lithology: deep-water; diatomaceous siltstone
•represent deposition in distal (outer shelf), low-energy marine settings (Lambert et al. 2017a; DeVries 2017).
Size class: macrofossils
Primary reference: M. Martinez-Cacers and C. de Muizon. 2011. A toothed mysticete from the Middle Eocene to Lower Oligocene of the Pisco Basin, Peru: new data on the origin and feeding evolution of Mysticeti. Sixth Triennial Conference on Secondary Adaptation of Tetrapods to Life in Water 56-57 [M. Uhen/M. Uhen] more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 112290: authorized by Mark Uhen, entered by Mark Uhen on 07.07.2011
Creative Commons license: CC BY (attribution)