Where: Buenos Aires, Argentina (39.0° S, 61.7° W)
• Paleocoordinates: 38.8° S, 60.8° W (Wright 2013)
• coordinate stated in text
• small collection-level geographic resolution
When: Montehermosan (5.0 - 3.8 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 Cárdenas on 05.11.2013
Creative Commons license: CC0 (CC0)
Taxonomic list
Gnathostomata | |
Osteichthyes indet. bony fish | |
Amphibia | |
Ceratophrys sp. Wied 1824 South American horned frog | |
Mammalia | |
Mammalia indet. mammal | |
Toxodontidae indet. Scott 1873 notoungulate
Toxodon chapalmalensis Ameghino 1908 notoungulate | |
Paedotherium sp. Burmeister 1888 notoungulate
Paedotherium bonaerense Ameghino 1887 notoungulate | |
Pseudotypotherium sp. Ameghino 1904 notoungulate | |
Glyptodontidae indet. glyptodon
Eleutherocercus antiquus Ameghino 1887 glyptodon
Plohophorus figuratus Ameghino 1887 glyptodon | |
Macrochorobates chapadmalensis Ameghino 1908 armadillo
Doellotatus inornatus Rovereto 1914 armadillo | |
Proscelidodon cf. patrius Ameghino 1888 edentate
Lestodon sp. Gervais 1855 edentate | |
Macraucheniidae indet. Ameghino 1889 placental | |
Eoauchenia aff. primitiva Ameghino 1887 placental | |
Rodentia indet. Bowdich 1821 rodent | |
"Auliscomys formosus" = Kraglievichimys formosus, Necromys bonapartei
"Auliscomys formosus" = Kraglievichimys formosus Reig 1978 rodent
Necromys bonapartei Reig 1978 rodent | |
Lagostomus sp. Brookes 1828 viscacha | |
Paramyocastor diligens Ameghino 1888 caviomorph | |
Actenomys priscus Owen 1840 caviomorph | |
Pithanotomys sp. Ameghino 1887 caviomorph | |
Neophanomys sp. Rovereto 1914 caviomorph | |
Phugatherium cataclisticum Ameghino 1887 caviomorph | |
Caviidae indet. Gray 1821 caviomorph
Orthomyctera sp. Ameghino 1889 caviomorph
Palaeocavia sp. Ameghino 1889 caviomorph | |
Reptilia | |
Tupinambis sp. Daudin 1802 tegu | |
Chelonoidis cf. australis Moreno 1889 turtle | |
Aves | |
Dendrocygna sp. Swinson 1837 whistling duck | |
Chunga incerta Tonni 1974 seriema |