Rotaliida

order of foraminifers Rotaliida (Rotaliida) is an order comprising closely related families of organisms. It contains 9 families with 14 known species. Key family groups include Ammoniidae, Buliminidae, Elphidiidae, Haynesinidae, Homotrematidae, and Nonionidae. It belongs to Globothalamea (Globothalamea).