Difference between revisions of "Hystrichosphaeridium irregulare Merrill 1895"

"?<I><B>irregulare</B></I>" ([[Merrill, 1895]], p.16; text-fig.14) [[Sarjeant, 1964b]], p.175.&nbsp; Holotype: [[Merrill, 1895]], text-fig.14.&nbsp; <B>Combination illegitimate</B> - <B>senior homonym</B>: <I>Hystrichosphaeridium irregulare</I> [[Pocock, 1962]].&nbsp; Substitute name: <I>[[Hystrichosphaeridium speciale]]</I>.&nbsp; Originally <I>[[Geodia irregularis Appendix A|Geodia]]</I>? <I>[[Geodia irregularis Appendix A|irregularis]]</I> (Appendix A), subsequently <I>Hystrichosphaeridium irregulare</I> (combination illegitimate), thirdly <I>Hystrichosphaeridium</I>? <I>irregulare</I> (combination illegitimate), fourthly <I>[[Hystrichosphaeridium speciale]]</I>.&nbsp; Questionable assignment: [[Stover and Evitt, 1978|Stover and Evitt (1978]], p.56) as a problematic species.&nbsp; <B>Taxonomic senior synonym</B>: <I>[[Xanthidium tubiferum var. complex Appendix A|Xanthidium tubiferum]]</I> var. <I>[[Xanthidium tubiferum var. complex Appendix A|complex]]</I> (now <I>[[Oligosphaeridium complex]]</I>), according to Harker and Sarjeant in [[Harker et al., 1990|Harker et al. (1990]], p.59).&nbsp; Age: Early Cretaceous.