''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