Difference between revisions of "Hystrichosphaeridium difficile"
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Latest revision as of 00:18, 1 September 2015
"difficile" Manum and Cookson, 1964, p.12-14, pl.3, figs.1-3,7. Holotype: Manum and Cookson, 1964, pl.3, fig.1; Fauconnier and Masure, 2004, pl.36, figs.2-4. NOW Heterosphaeridium. Originally Hystrichosphaeridium, subsequently Cordosphaeridium? (combination not validly published), thirdly (and now) Heterosphaeridium. Age: Cenomanian.
Parent: Hystrichosphaeridium
