Well YPF.XII.MAG.L.X-1 (Loica), Sample 3050-3060 (Cretaceous to of Chile)

Where: Chile (53.4° S, 69.1° W: paleocoordinates 56.3° S, 56.1° W)

• coordinate estimated from map

When: Santonian to Santonian (86.3 - 72.1 Ma)

• 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.

Environment/lithology: offshore; lithology not reported

Size class: microfossils

Collected by YPF

Collection methods: core, chemical,

• Each sample is about 5 grams, and the fossils were selected with picking

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 231971: authorized by Evangelos Vlachos, entered by Evangelos Vlachos on 10.10.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

• Abundance counts represent minimum estimates per 5 grams of sediment
Foraminifera
 Ammodiscoidea - Ammodiscidae
unclassified
  -
Foraminifera
  -
"Marginulina trinitatensis" = Cristellaria (Marginulina)
"Marginulina trinitatensis" = Cristellaria (Marginulina)
 Globigerinaceae - Globotruncanidae
 Globigerinaceae - Heterohelicidae
Tubothalamea
 Miliolida - Hauerinidae
Quinqueloculina sp. d'Orbigny 1826
Globothalamea
 Rotaliida - Alabaminidae
 Rotaliida - Gavelinellidae
 Rotaliida - Cancrisidae
Foraminifera
 Globigerinina - Hedbergellidae
 Buliminoidea - Buliminidae
 Lituolida - Lituolidae
Nodosariata
 Vaginulinida - Vaginulinidae
Lenticulina rotulata Lamarck 1804
Foraminifera
 Rotaliina - Globorotalitidae
Globorotalites sp. Brotzen 1942
 Buliminacea - Reusselidae