†suborder Trigonostylopoidea Simpson 1934 (eutherian)
Full reference: G. G. Simpson. 1934. Provisional classification of extinct South American hoofed mammals. American Museum Novitates 750:1-21
Parent taxon: Meridiungulata according to M. C. McKenna 1975
See also Simpson 1934 and Simpson 1967
Sister taxa: none
Subtaxa: none
Ecology: scansorial insectivore
Distribution: there are no occurrences of Trigonostylopoidea in the database