Where: Chubut, Argentina (42.7° S, 69.8° W: paleocoordinates 44.8° S, 58.3° W)
• coordinate estimated from map
When: Lefipán Formation, Maastrichtian (72.1 - 66.0 Ma)
• bed-level stratigraphic resolution
Environment/lithology: deltaic; lithified conglomerate
•The Lefipán Formation consists of marine to marginal marine, fossiliferous sandstones and mudstones with some intercalated coquinas and conglomerates.
Size class: microfossils
• Samples were marine (dinoflagellate cysts)and continental (spores, pollen grains, fungal remains, fresh water algae) palynomorphs.
Preservation: original sporopollenin
Collection methods: chemical,
• Slides are housed in the palynological collection of the Museo Paleontológico Egidio Feruglio, Trelew, Chubut, Argentina (MPEF-Palin)numbers 100 to 113.
Primary reference: V. D. Barreda, N. R. Cúneo, P. Wilf, E. D. Currano, R. A. Scasso and H. Brinkhuis. 2012. Cretaceous/Paleogene Floral Turnover in Patagonia: Drop in Diversity, Low Extinction, and a Classopollis Spike. PLoS ONE 7(12):e52455 [C. Jaramillo/J. Moreno]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 149815: authorized by Carlos Jaramillo, entered by Jessica Moreno on 27.08.2013
Creative Commons license: CC BY (attribution)
Taxonomic list