Hystrichosphaeridium arborispinum
From dinoflaj2
arborispinum Davey and Williams, 1966b, p.61, pl.9, figs.5,10. Holotype: Davey and Williams, 1966b, pl.9, fig.10. Age: early-mid Barremian.
Parent: Hystrichosphaeridium
Parent: Hystrichosphaeridium
