''Anisolophus'' is an extinct genus of proterotheriid from the Early to Middle

Miocene The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and mea ...

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 genus was named by Burmeister in 1885 to accommodate the species ''

Anchitherium ''Anchitherium'' (meaning ''near beast'') is a genus of Extinction, extinct Equidae, equid with a three-toed hoof. ''Anchitherium'' was a browsing (predation), browsing (leaf eating) horse that originated in the early Miocene of North America, ...

australe'', which they had named earlier in 1879. Soria then referred the species ''Licaphrium floweri'' and ''Anisolophus minisculus'' to the genus, making ''Licaphrium'', named in 1887 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 ...

, a junior synonym of the genus. Both ''A. australis'' and ''A. floweri'' are known from the

Santacrucian The Santacrucian age is a period of geologic time (17.5 – 16.3 Mya (unit), Ma) within the Early Miocene epoch of the Neogene, used more specifically with South American land mammal age, SALMA classification in South America. It follows the Colhue ...

age

Santa Cruz Formation The Santa Cruz Formation is a geological formation in the Magallanes Basin, Magallanes/Austral Basin in southern Patagonia in Argentina and adjacent areas of Chile. It dates to the late Early Miocene epoch, and is contemporaneous with the eponym ...

, while ''A. minisculus'' is known from the

Collón Curá Formation The Collón Curá Formation () is a Middle Miocene fossiliferous geological formation of the southern Neuquén Basin in northwestern Patagonia and the western Cañadón Asfalto Basin of central Patagonia, Argentina. The formation crops out fro ...

. ''Anisolophus'' is considered the senior synonym of the genus ''Licaphrium'', which was named in 1887 by Ameghino for the species ''L. floweri'', now ''A. floweri''. Many other species of ''Licaphrium'' were named, many of which are considered synonyms of ''A. floweri'', ''

Tetramerorhinus ''Tetramerorhinus'' is an extinct genus of proterotheriid litoptern that lived during the Early and Middle Miocene in what is now Argentina and Peru. Description This animal resembled a small horse, with slender, elongated legs. The body was a ...

'', ''

Neobrachytherium ''Neobrachytherium'' is an extinct genus of proterotheriid mammal from the Late Miocene of Argentina and Uruguay. It is represented by multiple species, including the type ''N. intermedium'', originally named in 1891 by Moreno and Mercerat as a ...

'', or ''

Lophogonodon ''Brachytherium'' is an extinct genus of proterotheriid mammal from the Late Miocene to Late Pliocene of Argentina. It is represented by the type and only species ''B. cuspidatum'', a taxon named in 1883 by Ameghino for a partial mandible with t ...

'', as well as the dubious ''Licaphrium debile'', ''L. arenarum'', ''L. intermissum'', ''L. parvulum''. Two invalid species of ''Anisolophus'' are known, ''A. fischeri'', and ''A. acer'', which are both dubious and also known as '' Diaphragmodon fischeri'' or ''

Heptaconus ''Anisolophus'' is an extinct genus of proterotheriid from the Early to Middle Miocene of Argentina. The genus was named by Burmeister in 1885 to accommodate the species ''Anchitherium australe'', which they had named earlier in 1879. Soria then ...

acer''.

References

{{Taxonbar, from=Q111838955 Proterotheriids Miocene mammals of South America Prehistoric placental genera Neogene Argentina Fossils of Argentina Colloncuran Friasian Santacrucian Fossil taxa described in 1885