Trigonioides kodairai (FOSSIL) Kobayashi & Suzuki,1936 †
Trigonioides naquensis (FOSSIL) Gu, 1976 †
Hoffetrigonia kobayashi (FOSSIL) (Hoffet †)
Koreanaia yunnanensis (FOSSIL) H. Guo, 1981 †
Pledgia eyrensis (FOSSIL) N.H. Ludbrook, 1985 †