Thylacosmilus Riggs 1933 (metatherian)

Mammalia - Sparassodonta - Proborhyaenidae

Synonym: Achlysictis Ameghino 1891

Full reference: E. S. Riggs. 1933. Preliminary description of a new marsupial sabertooth fom the Pliocene of Argentina. Geological Series of Field Museum of Natural History 6:61-66

Parent taxon: Thylacosmilinae according to R. K. Engelman et al. 2020

See also de Muizon 1994, de Muizon 1999, Forasiepi and Carlini 2010, McKenna and Bell 1997 and Riggs 1933

Sister taxa: Eomakhaira, Patagosmilus

Subtaxa: Thylacosmilus atrox

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Type: Thylacosmilus atrox

Ecology: scansorial carnivore


• Pliocene of Argentina (2 collections)

• Montehermosan of Argentina (2)

• Miocene of Argentina (6)

Total: 10 collections including 11 occurrences

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Specimen images are retrieved through the ePANDDA API.

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