Grünbein Cantera Relleno Sanitario Level 2 (Neogene of Argentina)

Where: Buenos Aires, Argentina (38.8° S, 62.2° W: paleocoordinates 38.9° S, 59.9° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Xenodontomys ellipticus zone mammal zone, Cerro Azul Formation, Huayquerian (8.0 - 5.0 Ma)

• a late Huayquerian SALMA age is proposed

•Materials were recovered from two levels at the middle of the exposure. This is level 2

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; poorly lithified, calcareous carbonate

• Level 2 is a calcrete

Size classes: macrofossils, mesofossils

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 61299: authorized by Darin Croft, entered by Darin Croft on 04.06.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Notoungulata - Hegetotheriidae
Tremacyllus cf. impressus Ameghino 1888 notoungulate
mandible fragment(s)
Paedotherium cf. minor Cabrera 1937 notoungulate
mandible fragment(s)
 Cingulata - Dasypodidae
Macrochorobates sp. Scillato Yané 1980 armadillo
osteoderms
Macroeuphractus cf. morenoi Lydekker 1894 armadillo
osteoderms
Chorobates villosissimus Reig 1958 armadillo
osteoderms
Chasicotatus cf. peiranoi Esteban and Nasif 1996 armadillo
osteoderms
 Cingulata -
"cf. Berthawyleria sp." = Pseudoplohophorus, cf. Aspidocalyptus sp.
"cf. Berthawyleria sp." = Pseudoplohophorus Castellanos 1926 edentate
osteoderms
cf. Aspidocalyptus sp. Cabrera 1939 edentate
osteoderms
 Panameriungulata - Macraucheniidae
Promacrauchenia sp. Ameghino 1904 placental
partial skull