Where: Neuquén, Argentina (38.4° S, 70.0° W: paleocoordinates 37.9° S, 33.8° W)
• coordinate stated in text
• local area-level geographic resolution
When: Agua de la Mula Member (Agrio Formation), Late/Upper Hauterivian (136.4 - 130.0 Ma)
Environment/lithology: marine; lithified, gray shale and lithified, fine-grained, medium, gray sandstone
• Storm dominated shallow-marine environment with mixed siliciclastic and carbonate sedimentation (Lazo et al 2005).
• Several lithofacies have been identified: laminated dark bluish shales and marls, laminated dark grey shales, grey fine to medium sandstones, dark grey oolitic and bioclastic limestones and heterolithic bedding (lenticular towavy). A detailed description of similar lithofacies can be found in Lazo et al. (2005)
Size class: microfossils
Preservation: soft parts, original sporopollenin
Collection methods: Part of palynological material (Figs. 8-11) is housed in the collection of the Department of Geological Sciences, University of Buenos Aires, Buenos Aires, Argentina.
Primary reference: M. V. Guler, D. G. Lazo, P.J. Pazos, C. M. Borel, E. G. Ottone, R. V. Tyson, N. Cesaretti and M. B. Aguirre-Urreta. 2012. Palynofacies analysis and palynology of the Agua de la Mula Member (Agrio Formation) in a sequence stratigraphy framework, Lower Cretaceous, Neuquén Basin, Argentina. Cretaceous Research 41:65-81 [C. Jaramillo/J. Moreno]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 150584: authorized by Carlos Jaramillo, entered by Jessica Moreno on 11.09.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
Nevesisporites |
- |
|
Marchantiopsida |
Sphaerocarpales - |
|
Interulobites intraverrucatus |
- |
|
Equisetopsida |
Anthocerotidae - Anthocerotidae |
|
Lycopodiopsida |
Lycopodiales - |
|
Mendicodinium |
- |
|
Dinophyceae |
- |
|
Gonyaulacales - Areoligeraceae |
|
Gonyaulacales - Ceratiaceae |
|
Gonyaulacales - |
|
Gonyaulacales - Gonyaulacaceae |
Florentinia sp., Florentinia mantellii, Scriniodinium sp., Tehamadinium sp., Tehamadinium cf. sousensis, Hystrichosphaerina pulchrum, Hystrichosphaerina schindewolfii, Occisucysta tentoria, Cribroperidinium spp., Cribroperidinium edwarsii, Cribroperidinium orthoceras, Systematophora sp., Kallosphaeridium sp., Gonyaulacysta spp., Oligosphaeridium complex, Oligosphaeridium pulcherrimun, Oligosphaeridium poculum, Oligosphaeridium dividuum, Kiokansium unituberculatum, Rhynchodiniopsis sp.
|
Gonyaulacales - |
|
- |
|
|
Dinoflagellata - |
|
Cerbia tabulata |
- |
|