Xenascus australensis
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*australensis Cookson and Eisenack, 1969, p.7, figs.1I–K. Holotype: Cookson and Eisenack, 1969, figs.1I–J. Taxonomic senior synonym: Hystrichosphaera (as Phoberocysta, now Xenascus) ceratioides, according to Davey and Verdier (1971, p.26) — however, Lentin and Williams (1985, p.374) retained Xenascus australensis. Age: Albian–Cenomanian.
