Spiniferites microceras subsp. opisthophorus (Cookson and Eisenack, 1974, p.61, pl.22, fig.12) Lentin and Williams, 1977b, p.152.
TYPE: Holotype: Cookson and Eisenack, 1974, pl.22, fig.12. HISTORY: Originally Spiniferites microceras var. opisthophorus, subsequently (and now) Spiniferites microceras subsp. opisthophorus. AGE: Paleocene.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |