Micrhystridium Appendix A

MICRHYSTRIDIUM Deflandre, 1937b, p.79.  Emendations: Staplin, 1961, p.408; Sarjeant, 1967c, p.204; Lister, 1970, p.77; Sarjeant and Stancliffe, 1994, p.12.  Acritarch genus.  Taxonomic junior synonym: Solisphaeridium (Appendix A), according to Sarjeant and Stancliffe (1994, p.12) — however, Moczydłowska (1998, p.98) retained Solisphaeridium.  For further synonymy, see Fensome et al. (1990, p.315) and Sarjeant and Stancliffe (1994, p.12).  Type: Deflandre, 1937b, pl.12 (al. pl.9), fig.11, as Micrhystridium inconspicuum.

Species List:

"Micrhystridium ambiguum Appendix A"
Micrhystridium claviculorum Appendix A
"Micrhystridium diploporum Appendix A"
"Micrhystridium fucosum Appendix A"
"Micrhystridium hamatum Appendix A"
*Micrhystridium inconspicuum Appendix A
"Micrhystridium longispinosum Appendix A"
Micrhystridium lucidum Appendix A
"Micrhystridium nanus Appendix A"
"Micrhystridium oceaniae Appendix A"
"Micrhystridium paulinae Appendix A"
"Micrhystridium picorricum Appendix A"
"Micrhystridium pumile Appendix A"
Micrhystridium seminudum Appendix A
"Micrhystridium singulare Appendix A"
Micrhystridium stimuliferum Appendix A
"Micrhystridium suemegense Appendix A"
"Micrhystridium trispinosum Appendix A"
"Micrhystridium tubulatum Appendix A"
"Micrhystridium uncinatum Appendix A"
"Micrhystridium veligerum Appendix A"