Callaiosphaeridium trycherium
From dinoflaj3
trycherium Duxbury, 1980, p.114, pl.11, figs.6,9. Holotype: Duxbury, 1980, pl.11, fig.6. Age: Barremian.
trycherium Duxbury, 1980, p.114, pl.11, figs.6,9. Holotype: Duxbury, 1980, pl.11, fig.6. Age: Barremian.