Adnatosphaeridium vetusculum
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"vetusculum" Davey, 1974, p.45, pl.1, figs.1-2. Holotype: Davey, 1974, pl.1, fig.2. NOW Nexosispinum. Originally Adnatosphaeridium, subsequently Systematophora, thirdly (and now) Nexosispinum, fourthly Kiokansium. Age: Early Barremian.
Parent: Adnatosphaeridium
