View source for Heterosphaeridium difficile

<I><B>difficile</B></I> ([[Manum and Cookson, 1964]], p.12&ndash;14, pl.3, figs.1&ndash;3,7) [[Ioannides, 1986]], p.24.&nbsp; Holotype: [[Manum and Cookson, 1964]], pl.3, fig.1; [[Fauconnier and Masure, 2004]], pl.36, figs.2&ndash;4.&nbsp; Originally <I>[[Hystrichosphaeridium difficile|Hystrichosphaeridium]]</I>, subsequently <I>[[Cordosphaeridium difficile|Cordosphaeridium]]</I>? (combination not validly published), thirdly (and now) <I>Heterosphaeridium</I>.&nbsp; Age: Cenomanian.
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<BR><CENTER>[[Image:Heterosphaeridium_difficile.jpg|link=]]</CENTER>
[[Category:Taxon]]
[[Category:Species|difficile Heterosphaeridium]]
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<B>Parent:</B> [[Parent Genus::Heterosphaeridium]]<P>
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