Pithonella bassriverensis
From dinoflaj2
"bassriverensis" Olsson and Youssefnia, 1979, p.1090, pl.1, figs.13-16. Holotype: Olsson and Youssefnia, 1979, pl.1, fig.16. NOW Pirumella. Originally Pithonella, subsequently Obliquipithonella, thirdly (and now) Pirumella. Age: Cenomanian.
Parent: Pithonella