Hystrichosphaeridium amalthei
From dinoflaj3
"amalthei" Wetzel, 1966, p.317, pl.31, figs.2,2a–b. Holotype: Wetzel, 1966, pl.31, figs.2,2a. NOW Dapsilidinium?. Originally Hystrichosphaeridium, subsequently Polysphaeridium, thirdly Polysphaeridium?, fourthly (and now) Dapsilidinium?. Age: late Toarcian.
Parent: Hystrichosphaeridium