Difference between revisions of "Cordosphaeridium difficile"
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Revision as of 13:25, 2 December 2016
"?difficile" (Manum and Cookson, 1964, p.12-14, pl.3, figs.1-3,7) Davey and Williams, 1966b, p.91. Holotype: Manum and Cookson, 1964, pl.3, fig.1; Fauconnier and Masure, 2004, pl.36, figs.2-4. Combination not validly published: basionym not fully referenced. NOW Heterosphaeridium. Originally Hystrichosphaeridium, subsequently Cordosphaeridium? (combination not validly published), thirdly (and now) Heterosphaeridium. Questionable assignment: Davey and Williams (1966b, p.91). Age: Cenomanian.
Parent: Cordosphaeridium