Where: Salta, Argentina (25.8° S, 65.4° W: paleocoordinates 28.4° S, 54.8° W)
• coordinate estimated from map
• local area-level geographic resolution
When: Lumbrera Formation (Salta Group), Ypresian (56.0 - 47.8 Ma)
• Fossil was collected at the base of "Faja Verde I" about 116 meters from the base of the formation (which is 410m thick)
•Fernicola et al. 2021: new 238U-206Pb isochron age (46.2 Ma) obtained from samples taken on various independent points across paleosol and matrix positioned at the top of the lower section of the Lumbrera Formation. The new age is consistent with the hyperthermal scheme and constrains the deposition of the lower section of the Lumbrera Fm. between 55–46.2 Ma. Subsequently, the upper sections of the Lumbrera Formation are now constrained between 46 and 40 Ma (Lutetian) (see Fernicola et al. 2021: New assemblage of cingulates)
• group of beds-level stratigraphic resolution
Environment/lithology: terrestrial; fine-grained, green, calcareous sandstone and red marl
Size classes: macrofossils, mesofossils
Preservation: permineralized
Collection methods: Depto. de Ciencias Naturales de la Universidad Nacional de Salta
Primary reference: E. Carbajal, R. Pascual, R. Pinedo, J. A. Salfity, and M. G. Vucetich. 1977. Un nuevo mamífero de la Formación Lumbrera (Grupo Salta) de la comarca de Carahuasi (Salta, Argentina). Edad y correlaciones. Publicaciones del Museo Municipal de Ciencias Naturales de Mar del Plata "Lorenzo Scaglia" 2(7):148-163 [D. Croft/D. Croft/D. Croft]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 44957: authorized by Darin Croft, entered by Darin Croft on 22.09.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
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