Hystrichosphaeridium arborispinum
From dinoflaj3
arborispinum Davey and Williams, 1966b, p.61, pl.9, figs.5,10. Holotype: Davey and Williams, 1966b, pl.9, fig.10. Age: early-middle Barremian.
arborispinum Davey and Williams, 1966b, p.61, pl.9, figs.5,10. Holotype: Davey and Williams, 1966b, pl.9, fig.10. Age: early-middle Barremian.