Acritarcha

Pterospermella solida (Volkova, 1969)

Synonymy list
1969     Pterospermopsis solida Volkova sp. nov. — Volkova, pp. 234, fig. 49:15-16
1979     Pterospermella solida (Volkova, 1969) Volkova, comb. nov. — Volkova et al., pp. 29, fig. Pl. 17:4-5