Rigaudella perforata
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"perforata" (Alberti, 1961, p.37, pl.9, fig.14) Below, 1982b, p.149. Holotype: Alberti, 1961, pl.9, fig.14. Originally Cannosphaeropsis, subsequently Adnatosphaeridium, thirdly Rigaudella. Taxonomic senior synonym: Cannosphaeropsis (now Rigaudella) filamentosa, according to Stancliffe and Sarjeant (1990, p.206). Fauconnier and Ogg in Fauconnier and Masure (2004, p.479-480) listed this taxon as a provisional species but accepted the synonymy cited above. Age: ?Callovian.
Parent: Rigaudella