|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was reranked as the subclass Eotheria by McKenna (1975); it was reranked as the infraclass Eotheria by Jenkins and Crompton (1979).
It was assigned to Mammalia by Bonaparte (1986); and to Prototheria by McKenna (1975), Jenkins and Crompton (1979) and Zhou et al. (1991).