Isotemnus Ameghino 1897 (notoungulate)

Mammalia - Notoungulata - Isotemnidae

Synonyms: Amphitemnus Ameghino 1904, Dimerostephanos Ameghino 1902, Eochalicotherium Ameghino 1901, Lelfunia Roth 1901, Prostylops Ameghino 1897

Full reference: F. Ameghino. 1897. Mammiféres crétacés de l’Argentine (Deuxième contribution à la connaissance de la fauna mammalogique de couches à Pyrotherium) [Cretaceous mammals of Argentina (second contribution to the knowledge of the mammalian fauna of the Pyrotherium Beds)]. Boletin Instituto Geografico Argentino 18(4–9):406-521

Parent taxon: Isotemnidae according to G. G. Simpson 1967

See also Ameghino 1897, Ameghino 1901, Ameghino 1902, Ameghino 1904, Carroll 1988 and Simpson 1935

Sister taxa: Acoelohyrax, Anisotemnus, Calodontotherium, Coelostylodon, Colhuapia, Colhuapia rosei, Colhuelia, Distylophorus, Eurystephanodon crassatus, Interhippus deflexus, Lafkenia, Lafkenia schmidti, Lafkenia sulcifera, Lophocoelus, Pampatemnus, Pehuenia magna, Pelurocoelodon, Pleurocoelodon, Pleurostylodon, Rhyphodon, Thomashuxleya, Thomashuxleya principialis, Trigonolophodon modicus, Trimerostephanos

Subtaxa: Isotemnus colhuehuapiensis Isotemnus ctalego Isotemnus haugi Isotemnus latidens Isotemnus primitivus Prostylops typus

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Type: Isotemnus primitivus

Ecology: scansorial herbivore

Distribution:

• Eocene of Argentina (14 collections)

• Paleocene of Argentina (1)

Total: 15 collections including 30 occurrences

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