From Fensome et al., 2019:
Adnatosphaeridium aemulum ssp. integrum, (Cookson and Eisenack, 1958, p.47, pl.7, figs.6–7) Eisenack and Kjellström, 1972, p.45.
Holotype: Cookson and Eisenack, 1958, pl.7, fig.6; Fensome et al., 1995, fig.1 — p.1565; Fauconnier and Masure, 2004, pl.68, figs.8–9.
NOW Rigaudella aemula subsp. integra.
Originally Cannosphaeropsis aemula subsp. integra, subsequently Adnatosphaeridium aemulum subsp. integrum, thirdly (and now) Rigaudella aemula subsp. integra.
Age: Late Jurassic.

Locus typicus: Carnarvon Basin, W Australia
Stratum typicum: Early Callovian

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Original description as Cannosphaeropsis aemulum ssp. integrum: [Cookson and Eisenack, 1958, p. 47]:

Diagnosis:
Shell sphaeroidal with a number of hollow, funnel-like processes the wall of which are, for the most part, entire or only slightly perforated. The "funnels" are connected by short delicate threads.

Dimensions:
Overall diameter 95-128 µm, processes 24-38 µm.

Affinities:
The subspecies integrum is readily distinguishable from the typical examples of C. aemula by the rather shorter, broader and more entire processes.