Playa Media Luna, Priabonian: Priabonian, Peru
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Cetacea
- Mystacodontidae
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Mysticeti indet.
Cope 1891
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1 specimen | |||||||||
| toothed mysticete | ||||||||||
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= Mystacodon selenensis n. gen., n. sp.
Lambert et al. 2017
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Lambert et al. 2017 | |||||||||
| see common names | ||||||||||
Geography
| Country: | Peru | State/province: | Ica |
| Coordinates: | 14.6° South, 75.9° West (view map) | ||
| Paleocoordinates: | 17.0° South, 68.4° West | ||
| Basis of coordinate: | stated in text |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
| Key time interval: | Priabonian | Nannofossil zone: | NP19/20 |
| Age range of interval: | 37.71000 - 33.90000 m.y. ago |
Stratigraphy
| Formation: | Yumaque | Member: | middle part | ||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: 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). | |||||
Lithology and environment
| Primary lithology: | planar lamination,diatomaceous siltstone |
| Includes fossils? | Y |
| Lithology description: finely laminated to massive, diatomacetous siltstones, containing pelagic microfossils, thin-shelled pectinid bivalves, and numerous fish scales | |
| Environment: | deep-water indet. |
| Geology comments: deep water, organic-rich
represent deposition in distal (outer shelf), low-energy marine settings (Lambert et al. 2017a; DeVries 2017). | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils,some microfossils |
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 112290 | ||
| Authorizer: | M. Uhen | Enterer: | M. Uhen |
| Modifier: | M. Uhen | Research group: | vertebrate |
| Created: | 2011-07-07 06:45:04 | Last modified: | 2019-05-30 11:15:29 |
| Access level: | the public | Released: | 2011-07-07 06:45:04 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 36625. | 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] |
Secondary references:
| 60607 | C. de Muizon, G. Bianucci, M. Martínez-Cáceres and O. Lambert. 2019. Mystacodon selenensis, the earliest known toothed mysticete (Cetacea, Mammalia) from the late Eocene of Peru: anatomy, phylogeny, and feeding adaptations. Geodiversitas 41(11):401-499 [M. Uhen/B. Shipps/M. Uhen] | |
| 62283 | O. Lambert, M. Martínez-Cáeres, G. Bianucci, E. Steurbaut, M. Urbina and C. Muizon. 2017. Earliest Mysticete from the Late Eocene of Peru Sheds New Light on the Origin of Baleen Whales. Current Biology 27:17 [M. Uhen/M. Uhen] |