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''Lambdaconus'' is a genus of proterotheriid from the
Late Oligocene The Chattian is, in the geologic timescale The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the pro ...
to
Early Miocene The Early Miocene (also known as Lower Miocene) is a sub-epoch of the Miocene epoch (geology), Epoch made up of two faunal stage, stages: the Aquitanian age, Aquitanian and Burdigalian stages. The sub-epoch lasted from 23.03 ± 0.05 annum, Ma to ...
of
Argentina Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...
. The type species is ''L. suinus'', named in 1897 by Ameghino, with referred species including ''L. lacerum'', named as '' Proterotherium 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