ABSTRACT: Shanita thawtinti n. sp. is proposed for a pillared milioloid foraminifer found from Middle Permian strata of the Nwabangyi Formation of the Plateau Limestone Group, exposed in the western Shan Plateau of Myanmar. The new species is characterized by its extraordinary large size of mature test and large numbers of volutions. In contrast to the previously assigned ages for other species of Shanita, the age of the new species is considered to be Murgabian (=Wordian) based on the occurrence between beds of the index fusulinacean species, Neoschwagerina craticulifera below and Neoschwagerina margaritae above.