New subfamily Petschoricinae and its position in the system of Foraminifera

Abstract

A new foraminiferal subfamily, Petschoricinae subfam. nov., with the type genus Petschorica Suchov, 2012, from the Ufimian (Upper Permian) of the Pechora Province is described. The subfamily belongs to the family Saccamminidae and differs from all other subfamilies of this family in the presence of small supplementary apertures, which are irregular in shape and scattering on the test surface. The family Saccamminidae is included in the order Saccamminida of the subclass Hormosinana Mikhalevich, 1992, class Nodosariata Mikhalevich, 1992.