Where: Salta, Argentina (25.4° S, 65.9° W: paleocoordinates 28.1° S, 54.2° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Mealla Formation, Selandian to Selandian (61.6 - 56.0 Ma)
• Late Danian-early Selandian based on Zimicz et al. (2020), but del Papa et al. (2022) provided an absolute date for the upper levels of the Mealla Fm., giving a U–Pb zircon age of 58 Ma. del Papa et al. (2022) proposed a temporal range of 61–57 Ma for the Mealla Fm.
•10 m below the contact with Maíz Gordo Formation
• bed-level stratigraphic resolution
Environment/lithology: "floodplain"; medium-grained, red sandstone
Size class: macrofossils
Primary reference: A. N. Zimicz, M. Fernández, M. Bond, L. Chornogubsky, M. Arnal, M. Cárdenas, and J. C. Fernicola. 2020. Archaeogaia macachaae gen. et sp. nov., one of the oldest Notoungulata Roth, 1903 from the early-middle Paleocene Mealla Formation (Central Andes, Argentina) with insights into the Paleocene-Eocene south American biochronology. Journal of South American Earth Sciences 102772 [P. Mannion/P. Mannion]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 212256: authorized by Philip Mannion, entered by Philip Mannion on 06.08.2020
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Archaeogaia macachaae n. gen. n. sp.
|