Where: Buenos Aires, Argentina (39.0° S, 61.7° W: paleocoordinates 39.1° S, 60.3° W)
• coordinate stated in text
When: Montehermosan (6.8 - 4.0 Ma)
• The complete sedimentary sequence includes three stratigraphic units (Zavala, 1993): the Monte Hermoso Forma- tion (Lower–Middle Pliocene), Puerto Belgrano Formation (Upper Pleistocene) and Punta Tejada Formation (Upper Pleistocene–Middle Holocene). The Monte Hermoso Formation (Zavala, 1993) crops out at the abrasion platform and the lower part of the cliff, along its entire extension, with a maximum thickness of up to 6 m. Zavala and Navarro (1993) interpreted that the Monte Hermoso Formation was deposited through a fluvial dynamic of high sinuosity muddy fine-grained rivers. These authors identified architectural elements of channel, lateral accretion deposits and overbank deposits.
Environment/lithology: "floodplain"; lithified, muddy siltstone and lithified, silty siltstone
Size classes: macrofossils, mesofossils, microfossils
Preservation: original phosphate
Collection methods: Fossil remains are deposited in the 'Museo Municipal de Ciencias Naturales Carlos Darwin' (Punta Alta, Buenos Aires), under the acronym MD-FM.
Primary reference: R. L. Tomassini and C. I. Montalvo. 2013. Taphonomic modes on fluvial deposits of the Monte Hermoso Formation (early Pliocene), Buenos Aires province, Argentina. Palaeogeography, Palaeoclimatology, Palaeoecology 369:282-294 [C. Jaramillo/A. Cardenas ] more details
Purpose of describing collection: taphonomic analysis
PaleoDB collection 152062: authorized by Carlos Jaramillo, entered by Andrés Cardenas on 05.11.2013
Creative Commons license: CC BY (attribution)