Las Obscuras Level 1 (Pliocene of Argentina)

Where: Buenos Aires, Argentina (38.7° S, 61.7° W: paleocoordinates 38.8° S, 60.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Saldungaray-La Toma Formation, Montehermosan (5.0 - 3.8 Ma)

• a Monterhermosan SALMA age is proposed

•Age: Montehermosan (Early Pliocene; Zanclean; sensu Deschamps, 2005). Fossil

Environment/lithology: terrestrial; gray, silty sandstone

• silty-loessic sediments of the "Pampean Sediments"

Size class: macrofossils

Collection methods: bulk, quarrying, surface (float), surface (in situ),

• Cátedra de Geología Histórica from the Universidad Nacional del Sur, Bahía Blanca

Primary reference: C. M. Deschamps. 2005. Late Cenozoic mammal bio-chronostratigraphy in southwestern Buenos Aires Province, Argentina. Ameghiniana 42(4):733-750 [D. Croft/D. Croft]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 61301: authorized by Darin Croft, entered by Darin Croft on 04.06.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Cingulata - Glyptodontidae
Plohophorus cuneiformis
Plohophorus cuneiformis Ameghino 1904 glyptodon
caudal tube and part of the carapace
 Notoungulata - Mesotheriidae
Pseudotypotherium sp.
Pseudotypotherium sp. Ameghino 1904 notoungulate
associated upper and lower dentition