Family STAFFELLIDAE A. D. Miklukho-Maklay, 1949

Staffellidae A. D. Miklukho-Maklay, 1958 (*2123), p. 11, nom. corr. pro family Staffellinidae.

Staffellinidae A. D. Miklukho-Maklay, 1957 ( *2122), p. 96 (nom. imperf.), nom. transi. ex subfamily Staffellininae. Staffellininae A. D. Miklukho-Maklay, 1949 (*2115), p. 46 (subfamily; nom. imperf.).Staffellinae Rozovskaya, 1950 (*2658), p. 378 (subfamily). Nankinellinae A. D. Miklukho-Maklay, 1963 (*2130), p. 201, 210 (subfamily).

Leellinae Pasini, 1965 (*2367), p. 67 (subfamily). Cheniinae F. Kahler and G. Kahler, 1966 (*1632), p. 99 (subfamily).

Haoellinae J. X. Lin, 1984 (*1855), p. 176, 330 (subfamily; nom. superfl., included Leella, type of prior subfamily). Pisolininae Rauzer-Chernousova, 1985 (*2528), p. 19 (subfamily).

Test small, subspherical to discoidal, septa closely spaced, simple, and not fluted, tunnel single, chomata distinct, asymmetrical; wall of tectum and diaphanotheca and may have tectoria, secondary deposits common, wall tends to be secondarily silicified and struc­ture difficult to recognize. L. Carboniferous (Visean) to U. Permian (Djulfian).