From Fensome et al., 2019:
Melitasphaeridium angustum Matsuoka, 1983b, p.115–116, pl.3, figs.6a–b; pl.4, figs.1a–b,2a–b,4. Holotype: Matsuoka, 1983b, pl.4, figs.2a–b. Age: Pliocene–Early Pleistocene.

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