"Baltisphaeridium septatum" Cookson and Eisenack, 1967b, p.253-254, pl.42, figs.6-10; text-fig.1.
TYPE: Holotype: Cookson and Eisenack, 1967b, pl.42, fig.6; Eisenack and Kjellström, 1975b, uppermost figure - p.984w; Fensome et al., 1996, fig.1 - p.2355. HISTORY: NOW: Hafniasphaera. Originally Baltisphaeridium, subsequently Spiniferites, thirdly (and now) Hafniasphaera, fourthly Achomosphaera, fifthly Rivernookia. AGE: Late Paleocene.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |