Trigonostylops Ameghino 1897 (placental)

Mammalia - Astrapotheria - Trigonostylopidae

Synonyms: Chiodon Berg 1899, Staurodon Roth 1899

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: Trigonostylopidae according to G. G. Simpson 1967

See also Ameghino 1897, Ameghino 1901, Ameghino 1904, Carroll 1988, Paula Couto 1952, Roth 1899 and Simpson 1957

Sister taxa: Albertogaudrya, Albertogaudryia, Hedralophus, Hedralophus bicostatus, Seudenius, Seudenius cteronc, Shecenia, Shecenia ctirneru, Staurodon supernus, Tetragonostylops, Trigonostylops duplex

Subtaxa: Trigonostylops gegenbauri Trigonostylops wortmani

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Type: Trigonostylops wortmani

Ecology: scansorial herbivore

Distribution:

• Eocene to Oligocene of Peru (1 collection)

• Eocene of Antarctica (1), Argentina (24), Brazil (1)

• Paleocene of Argentina (3)

Total: 30 collections including 42 occurrences

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