''Pampatemnus'' is an

extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

notoungulate Notoungulata is an extinct order of ungulates that inhabited South America from the early Paleocene to the end of the Pleistocene, living from approximately 61 million to 11,000 years ago. Notoungulates were morphologically diverse, with forms re ...

belonging to the family Isotemnidae that lived during the Early to Middle

Eocene The Eocene ( ) is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes ...

of what is now

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 ...

Etymology

The genus name, ''Pampatemnus'', is composed of the prefix ''Pampa-'', the

Quechua Quechua may refer to: *Quechua people, several Indigenous ethnic groups in South America, especially in Peru *Quechuan languages, an Indigenous South American language family spoken primarily in the Andes, derived from a common ancestral language ...

word for "

plain In geography, a plain, commonly known as flatland, is a flat expanse of land that generally does not change much in elevation, and is primarily treeless. Plains occur as lowlands along valleys or at the base of mountains, as coastal plains, and ...

", and the suffix ''-temnus'', from the

greek Greek may refer to: Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group *Greek language, a branch of the Indo-European language family **Proto-Greek language, the assumed last common ancestor of all kno ...

word ''Τεμγυς'', meaning "groove", a suffix commonly used by

Florentino Ameghino Florentino Ameghino (born Giovanni Battista Fiorino Giuseppe Ameghino; September 19, 1853 – August 6, 1911) was an Argentine naturalist, paleontologist, anthropologist and zoologist, whose fossil discoveries on the Argentine Pampas, especial ...

to name genera of Isotemnidae.

Description

''Pampatemnus'' was discovered in outcrops of the Lumbrera Formation, an

geological formation A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics (lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock expo ...

located in the Guachipas Department of the

Salta Province Salta () is a Provinces of Argentina, province of Argentina, located in the northwest of the country. Neighboring provinces are from the east clockwise Formosa Province, Formosa, Chaco Province, Chaco, Santiago del Estero Province, Santiago del Es ...

. Two species attributed to the genus have been described : ''Pampatemnus infernalis'' and ''Pampatemnus deuterus''. The species name ''infernalis'' was given to honor the

Legion Infernal Legion may refer to: Military * Roman legion, the basic military unit of the ancient Roman army *Aviazione Legionaria, Italian air force during the Spanish Civil War * A legion is the regional unit of the Italian carabinieri * Spanish Legion, ...

, a

gaucho A gaucho () or gaúcho () is a skilled horseman, reputed to be brave and unruly. The figure of the gaucho is a folk symbol of Argentina, Paraguay, Uruguay, Rio Grande do Sul in Brazil, the southern part of Bolivia, and the south of Chilean Patago ...

regiment A regiment is a military unit. Its role and size varies markedly, depending on the country, military service, service, or administrative corps, specialisation. In Middle Ages, Medieval Europe, the term "regiment" denoted any large body of l ...

who took an important role in the

Spanish American wars of independence The Spanish American wars of independence () took place across the Spanish Empire during the early 19th century. The struggles in both hemispheres began shortly after the outbreak of the Peninsular War, forming part of the broader context of the ...

, while the name ''deuterus'' refers to the two species discovery order.

References

{{Taxonbar, from=Q106999485 Toxodonts Eocene mammals of South America Paleogene Argentina Fossils of Argentina Fossil taxa described in 1982 Prehistoric placental genera