Achomosphaera alcicornu subsp. columnaeformis (Aristova, 1971, p.117-118, pl.1, fig.2) Lentin and Williams, 1989, p.3.
TYPE: Holotype: Aristova, 1971, pl.1, fig.2. HISTORY: Originally Achomosphaera alcicornu forma columnaeformis, subsequently (and now) Achomosphaera alcicornu subsp. columnaeformis. AGE: Eocene.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |