Tongoy area, Coquimbo Formation, Unit 11: Zanclean, Chile

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Thecostraca - Balanomorpha - Balanidae
Balanus sp. Da Costa 1778
Bivalvia - Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758
Bivalvia - Pectinida - Pectinidae
Chlamys hupeanus (Philippi 1887)
Gastropoda
Gastropoda indet. Cuvier 1795
Gastropoda - Neogastropoda - Thaisidae
Chorus sp. Gray 1847
unclassified
Vertebrata indet. Lamarck 1801
fish scales
Mammalia - Cetacea
Cetacea indet. Brisson 1762
cetacean bones
Chondrichthyes - Lamniformes - Lamnidae
Carcharodon carcharias (Linnaeus 1758)
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]