From Fensome et al., 2019:
Achomosphaera cambra, Sah et al., 1970, p.144, pl.1, fig.3.
Holotype: Sah et al., 1970, pl.1, fig.3.
Originally Achomosphaera, subsequently Spiniferites.
Taxonomic senior synonym: 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.
Age: Late Cretaceous.

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