From Fensome et al., 2019:
Callaiosphaeridium scabratum Khowaja-Ateequzzaman and Garg, 2004a, p.100,102, pl.1, figs.1–9. Holotype: Khowaja-Ateequzzaman
and Garg, 2004a, pl.1, figs.1–3. Age: early Turonian.

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