''Lambdaconus'' is a genus of proterotheriid from the Late Oligocene to Early Miocene of

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...

. The type species is ''L. suinus'', named in 1897 by Ameghino, with referred species including ''L. lacerum'', named as ''

Proterotherium ''Proterotherium'' (meaning "first beast") is an extinct genus of litoptern mammal of the family Proterotheriidae that lived during the Late Miocene of Argentina and Chile. Fossils of this genus have been found in the Ituzaingó Formation of Arge ...

lacerum'' in 1902 by Ameghino, and ''L. inaqeuifacies''.

References

{{Taxonbar, from=Q111838995 Proterotheriids Oligocene mammals of South America Miocene mammals of South America Paleogene Argentina Neogene Argentina Fossils of Argentina Colhuehuapian Deseadan Fossil taxa described in 1897 Taxa named by Florentino Ameghino Prehistoric placental genera Golfo San Jorge Basin Sarmiento Formation