Lomas del Sauce: Late/Upper Pliocene, Chile
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Nothrotheriidae
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Thalassocnus carolomartini
McDonald and Muizon 2002
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| see common names | |||||||
Geography
| Country: | Chile |
| Coordinates: | 30.0° South, 71.3° West (view map) |
| Paleocoordinates: | 30.1° South, 70.5° West |
| Basis of coordinate: | stated in text |
| Altitude: | 70 meters |
| Geographic resolution: | small collection |
Time
| Period: | Neogene | Epoch: | Pliocene |
| Stage: | Piacenzian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Late/Upper Pliocene | ||
| Age range of interval: | 3.60000 - 2.58000 m.y. ago |
Stratigraphy
| Formation: | Horcón | ||||
| Stratigraphy comments: The Horcón Formation is part of the Neogene Navidad Basin and was defined by Thomas (1958) as a set of sedi- ments that includes sandstones, mudstones, and silt- stones forming a cliff along the coastline between Caleta Horcón and Maitencillo (Carrillo-Briceño et al., 2013). Carrillo- Briceño et al. (2013) recognized two different stratigraphic intervals for this unit and assigned them to the upper inter- val of the Horcón Formation. According to Carrillo-Briceño et al. (2013), the lithology is dominated by fine to coarse sandstones poorly consolidated and interbedded with a few layers of conglomerates and boulders. Based on the association of fossil molluscs contained in these sequences, Carrillo-Briceño et al. (2013) proposed a late Pliocene age for the Horcón Formation. |
Lithology and environment
| Primary lithology: | siltstone |
| Lithology description: The stratigraphy of this locality is charac- terized by a succession of sandy to clayey poorly consoli- dated siltstones interbedded with two fossiliferous beds made up of silt and coquinas (Fig. 3) with abundant bivalve, gastropod, serpulid, barnacle, and decapod remains, as well as a conspicuous record of vertebrates including marine mammals, chondrichthyans, bony fishes, and birds. | |
| Environment: | coastal indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 192000 | ||
| Authorizer: | M. Uhen | Enterer: | M. Uhen |
| Modifier: | M. Kouvari | Research group: | vertebrate |
| Created: | 2018-02-27 13:58:20 | Last modified: | 2020-11-30 13:13:37 |
| Access level: | the public | Released: | 2018-02-27 13:58:20 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 64857. | S. De Los Arcos, D. Partarrieu, J. Carrillo-Briceño and E. Amson. 2017. The Southernmost Occurrence of the Aquatic Sloth Thalassocnus (Mammalia, Tardigrada) in Two New Pliocene Localities in Chile. Ameghiniana 54(4):351-369 [M. Uhen/M. Uhen] |