Well YPF.XII.MAG.L.X-1 (Loica), Sample 3170-3180: Santonian - Campanian, Chile
collected by YPF

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Foraminifera informal agglutinated
21 specimens
Ammodiscidae
Ammodiscus siliceus
1 specimen
Nodosariata - Vaginulinida - Vaginulinidae
Lenticulina sp. Lamarck 1804
13 specimens
Nodosariata - Polymorphinida - Polymorphinidae
Ramulina sp.
2 specimens
Globothalamea - Rotaliida - Cancrisidae
Stensioina cf. infrafossa
4 specimens
Globothalamea - Rotaliida - Gavelinellidae
Notoplanulina rakauroana
2 specimens
Gavelinella berthelinii
13 specimens
Gavelinella murchisonensis
4 specimens
Lituolida - Lituolidae
Ammobaculites sp. Cushman 1910
1 specimen
Buliminidae
Bulimina carseyae
4 specimens
Planomalinidae
Globigerinelloides alvarezi
1 specimen
Globigerinelloides prairiehillensis Pessagno 1967
1 specimen
Globotruncanidae
Archaeoglobigerina bosquensis Pessagno 1967
21 specimens
Heterohelicidae
Planoheterohelix reussi
13 specimens
see common names

Geography
Country:Chile
Coordinates: 53.4° South, 69.1° West (view map)
Paleocoordinates:56.3° South, 56.1° West
Basis of coordinate:estimated from map
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Key time interval:Santonian - Campanian
Age range of interval:86.30000 - 72.10000 m.y. ago
Stratigraphy
Local section:Loica Local bed:3170-3180 m
Local order:top to bottom
Stratigraphy comments: Each sample refers to a collection of fossils located a specific part of the column of the well, measured in meters from top to bottom
The Maastrichtian levels are located below a disconformity with the Eocene levels.
Lithology and environment
Primary lithology: not reported
Environment:offshore
Taphonomy
Modes of preservation:body
Size of fossils:microfossils
Collection methods and comments
Collection methods:core,chemical,survey of museum collection
Rock censused:5 g
Reason for describing collection:taxonomic analysis
Collectors:YPF
Collection method comments: Each sample is about 5 grams, and the fossils were selected with picking
Taxonomic list comments:Abundance counts represent minimum estimates per 5 grams of sediment
Metadata
Database number:231974
Authorizer:E. Vlachos Enterer:E. Vlachos
Modifier:E. Vlachos
Created:2023-10-10 09:17:42 Last modified:2023-10-10 10:16:15
Access level:the public Released:2023-10-10 09:17:42
Creative Commons license:CC BY
Reference information

Primary reference:

85995. G. N. Angelozzi, L. Calvo Marcillese, D. Ronchi and G. Ottone. 2019. Analisis bioestratigrafico y paleoambiental integral del pozo YPF-XII-MAG-L-X-1 (Loica) Cuenca Austral. [E. Vlachos/E. Vlachos]