Achomosphaera cambra, Sah et al., 1970, pl.1, fig.3

Originally Achomosphaera, subsequently Spiniferites.
Tax. sr. syn.: Galea (now Spiniferites) twistringiensis, by implication in Jain (1982, p.51), who considered Achomosphaera cambra to be a taxonomic junior synonym (at subspecific rank) of Hystrichosphaera ramosa var. multibrevis (as Spiniferites ramosus var. multibrevis), which is now considered a taxonomic junior synonym (at specific rank) of Galea (now Spiniferites) twistringiensis.

Holotype: Sah et al., 1970, pl.1, fig.3.
Age: Late Cretaceous.