Chytroeisphaeridia minor subsp. psilata

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"subsp. psilata" (Burger, 1980a, p.71, pl.25, figs.5-11) Lentin and Williams, 1985, p.58.  Holotype: Burger, 1980a, pl.25, fig.10.  NOW Kallosphaeridium? helbyi subsp. psilatum.  Originally Canningia? minor var. psilata, subsequently Canningia? minor subsp. psilata, thirdly Chytroeisphaeridia minor subsp. psilata, fourthly (and now) Kallosphaeridium? helbyi subsp. psilatum.  Age: Aptian-Albian. Parent: Chytroeisphaeridia minor