Carta Geológica 133-134, Locality 26: Late/Upper Pliocene, Chile

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Thecostraca - Balanomorpha - Balanidae
Balanus sp. Da Costa 1778
Malacostraca - Decapoda
Decapoda indet. Latreille 1802
Latreille, 1802
Rhynchonellata - Terebratulida - Terebratellidae
Terebratella sp. d'Orbigny 1847
d'Orbigny, 1847
Bivalvia - Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758
Bivalvia - Pectinida - Pectinidae
Chlamys hupeanus (Philippi 1887)
Argopecten purpuratus (Lamarck 1819)
Lamarck, 1819
Bivalvia - Cardiida - Mactridae
Mulinia sp. Gray 1837
Gastropoda - Neogastropoda - Muricidae
Acanthina unicornis (Bruguiére 1789)
Bruguière, 1789
Crassilabrum crassilabrum (Sowerby 1834)
Concholepas concholepas (Bruguiére 1789)
Gastropoda - Neogastropoda - Thaisidae
Chorus sp. Gray 1847
Chorus giganteus (Lesson 1830)
Gastropoda - Neogastropoda - Fasciolariidae
Fusinus remondi
see common names

Geography
Country:Chile State/province:Atacama
Coordinates: 29.1° South, 71.5° West (view map)
Paleocoordinates:29.2° South, 70.7° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
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 - 2.58800 m.y. ago
Stratigraphy
Formation:Formación Coquimbo
Stratigraphy comments: Formación Coquimbo (Mioceno Medio-Pleistoceno Inferior)
Lithology and environment
Primary lithology: poorly lithified sandy,calcareous conglomerate
Lithology description: Depósitos estratificados, medianamente consolidados, de areniscas finas a medias de color amarillo a gris, con intercalaciones de limos, conglomerados y coquinas. Esta unidad aflora en la localidad de Choros Bajos y presenta espesores cercanos a 12 m, sin base expuesta. En este lugar, engrana lateralmente con las gravas fluviales de la Formación Confluencia y en parte son cubiertos por ellas y por niveles calcáreos de los depósitos litorales inactivos (PlHl1).
Environment:marine 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:221938
Authorizer:M. Rivadeneira Enterer:S. Araya
Created:2021-09-01 19:31:32 Last modified:2021-09-01 19:31:32
Access level:the public Released:2021-09-01 19:31:32
Creative Commons license:CC BY
Reference information

Primary reference:

77643. C. Creixell, M. Ortiz, and C. Arevalo. 2012. Geología del Área Carrizalillo-El Tofo, Regiones de Atacama y Coquimbo. [M. Rivadeneira/S. Araya]