Operculodinium radiculatum

radiculatum Smith, 1992, p.348,351, figs.9,10e,i–j.  Holotype: Smith, 1992, figs.9,10j.  Quattrocchio and Sarjeant (2003, p.142) considered this species to be a possible taxonomic junior synonym of Cleistosphaeridium (now Linguladinium) bergmannii.  Age: late Campanian–early Maastrichtian.

Parent: Operculodinium