Cordosphaeridium subgenus Tarimocystium
CORDOSPHAERIDIUM subgenus TARIMOCYSTIUM He Chengquan, 1991, p.165,213–214. He Chengquan (1991, p.165) included the following species in this subgenus: Cordosphaeridium aulichnum, Cordosphaeridium brevispinum, Cordosphaeridium brevitubulosum, Cordosphaeridium crassum, and Cordosphaeridium operculatum. Citations for the above species are included under Cordosphaeridium. He Chengquan et al. (2009, p.148–150) also used this subgenus name. Type: He Chengquan, 1991, pl.13, fig.12; text-fig.39, as Cordosphaeridium (Tarimocystium) brevitubulosum.