Tongoy area, Coquimbo Formation, Unit 11: Zanclean, Chile
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Thecostraca
- Balanomorpha
- Balanidae
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Balanus sp.
Da Costa 1778
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea sp.
Linnaeus 1758
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Bivalvia
- Pectinida
- Pectinidae
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Chlamys hupeanus
(Philippi 1887)
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Gastropoda
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Gastropoda indet.
Cuvier 1795
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Gastropoda
- Neogastropoda
- Thaisidae
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Chorus sp.
Gray 1847
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unclassified
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Vertebrata indet.
Lamarck 1801
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fish scales | ||||||||||
Mammalia
- Cetacea
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Cetacea indet.
Brisson 1762
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cetacean bones | ||||||||||
Chondrichthyes
- Lamniformes
- Lamnidae
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Carcharodon carcharias
(Linnaeus 1758)
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teeth | ||||||||||
see common names |
Geography
Country: | Chile |
Coordinates: | 30.3° South, 71.5° West (view map) |
Paleocoordinates: | 30.5° South, 70.5° West |
Basis of coordinate: | estimated from map |
Geographic resolution: | local area |
Time
Period: | Neogene | Epoch: | Pliocene |
Stage: | Zanclean | 10 m.y. bin: | Cenozoic 6 |
Key time interval: | Zanclean | ||
Age range of interval: | 5.33300 - 3.60000 m.y. ago |
Stratigraphy
Formation: | Coquimbo | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: Unit 11 is assigned to an age of 5.3 Ma |
Lithology and environment
Primary lithology: | lithified sandstone |
Secondary lithology: | planar lamination poorly lithified claystone |
Lithology description: sandstone, clay, lower flow regime planar laminae | |
Environment: | offshore |
Geology comments: The very fine grain size of this unit suggests a low-energy, relatively deep-water environment... considered to represent inner bay sediments in relatively deep water (100-140 m). |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | biostratigraphic analysis |
Metadata
Database number: | 68271 | ||
Authorizer: | M. Aberhan | Enterer: | S. Nurnberg |
Modifier: | J. Alroy | Research group: | marine invertebrate |
Created: | 2007-01-12 11:42:31 | Last modified: | 2007-07-03 12:19:09 |
Access level: | the public | Released: | 2007-01-12 11:42:31 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
19640. | J. P. Le Roux, D. M. Olivares, S. N. Nielsen, N. D. Smith, H. Middleton, J. Fenner, and S. E. Ishman. 2006. Bay sedimentation as controlled by regional crustal behaviour, local tectonics and eustatic sea-level changes: Coquimbo Formation (Miocene-Pliocene), Bay of Tongoy, central Chile. Sedimentary Geology 184:133-153 [M. Aberhan/S. Nurnberg] |