Playa Media Luna, Priabonian (Eocene of Peru)

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 (38.0 - 33.9 Ma)

• Middle part of the Yumaque Formation, 77 m above the base; lower part of calcareous nannofossil zone NP19/20 of Martini [9]; dated at 36.4 million years ago based on age estimations used by Agnini et al. [10]; 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

• deep water, organic-rich

•represent deposition in distal (outer shelf), low-energy marine settings (Lambert et al. 2017a; DeVries 2017).

• finely laminated to massive, diatomacetous siltstones, containing pelagic microfossils, thin-shelled pectinid bivalves, and numerous fish scales

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)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Cetacea - Mystacodontidae
Mystacodon selenensis n. gen. n. sp.
Mystacodon selenensis n. gen. n. sp. Lambert et al. 2017 whale
toothed mysticete