El Guanaco (Miocene of Argentina)

Where: La Pampa, Argentina (36.3° S, 64.3° W: paleocoordinates 36.5° S, 62.0° W)

• coordinate estimated from map

• basin-level geographic resolution

When: Huayquerian mammal zone, Cerro Azul Formation, Huayquerian (9.0 - 6.8 Ma)

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Reposited in the MLP

Primary reference: F. J. Goin and C. Montalvo. 1988. Revisión sistemática y reconocimiento de una nueva especie del género Thylatheridium Reig (Marsupialia, Didelphidae). Ameghiniana 25(2):161-167 [C. Jaramillo/J. Carrillo]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140932: authorized by Carlos Jaramillo, entered by Juan Carrillo on 19.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Rodentia - Octodontidae
Xenodontomys simpsoni2 Kraglievich 1961 caviomorph
 Sparassodonta - Thylacosmilidae
"Achlysictis cf. lelongi" = Thylacosmilus atrox1
"Achlysictis cf. lelongi" = Thylacosmilus atrox1 Riggs 1933 metatherian
 Polydolopimorphia - Argyrolagidae
Microtragulus rusconii1 Goin et al. 2000 metatherian
 Didelphimorphia - Didelphidae
Thylatheridium dolgopolae Reig 1952 opossum
Hyperdidelphys pattersoni1 Reig 1952 opossum