Callaiosphaeridium asymmetricum

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*asymmetricum (Deflandre and Courteville, 1939, p.100–101, pl.4, figs.1–2) Davey and Williams, 1966b, p.104.  Emendation: Clarke and Verdier, 1967, p.43, as Hexasphaera asymmetrica.  Holotype: Deflandre and Courteville, 1939, pl.4, fig.1; Fensome et al., 1993a, fig.1 — p.949.  Originally Hystrichosphaeridium, subsequently (and now) Callaiosphaeridium, thirdly Hexasphaera (combination illegitimate).  Age: Senonian.


Callaiosphaeridium asymmetricum A.jpgCallaiosphaeridium asymmetricum B.jpgCallaiosphaeridium asymmetricum C.jpg
Parent: Callaiosphaeridium

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