In this paper the Carboniferous primitive fusulinacean zones of the Hina Limestone are established, which are in ascending order the Endothyra-Mediocris Zone, the Eostaffella-Millerella Zone and the Pseudostaffella-Profusulinella Zone. And here are illustrated the descriptions of Millerella marblensis Thompson, M. toriyamai Ota, Eostaffella kanmerai (Igo), E. akiyoshiensis Sada, E. mosquensis Vissarionova, E. ikensis Vissarionova, E. paraprisca Durkina, E. etoi Ota, E. sp. A, Mediocris mediocris (Vissarionova), M. adducta Durkina, Ozawainella japonica Sada, Pseudostaffella minuta Sada and Nankinella yokoyamai Sada.