Rigaudella aemula
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*aemula (Deflandre, 1939a, p.187-189, pl.9, fig.12; pl.10, figs.5-8; pl.11, figs.1,7) Below, 1982b, p.139. Emendation: Below, 1982b, p.139-140, as Rigaudella aemula. Holotype: Deflandre, 1939a, pl.11, fig.1; Eisenack and Kjellström, 1972, figure to left - p.43; Fensome et al., 1995, fig.1 - p.1473; fig.2 - p.1477. Originally Hystrichosphaeridium, subsequently Cannosphaeropsis, thirdly Adnatosphaeridium, fourthly (and now) Rigaudella. Taxonomic junior synonym: Cannosphaeropsis paucispina, according to Below (1982b, p.139). Age: Oxfordian.
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