Difference between revisions of "Hystrichosphaera ramosa"

Revision as of 15:55, 4 December 2016

"+ramosa" (Ehrenberg, 1837b, pl.1, fig.15) Deflandre 1937b, p.64.  Holotype: not designated.  Lectotype: Ehrenberg, 1837b, pl.1, fig.15, designated by Davey and Williams (1966a, p.32).  NOW Spiniferites.  Originally Xanthidium ramosum (Appendix A), subsequently (and now) Spiniferites ramosus, thirdly Hystrichosphaera ramosa, fourthly Ovum hispidum subsp. ramosum (combination not validly published, Appendix A), fifthly Bion ramosum (Appendix A).  Taxonomic junior synonyms: Xanthidium (as Hystrichosphaera) furcatum, according to Davey and Williams (1966a, p.29-33); Galea korykos and Hystrichosphaeridium echinoides, both according to Sarjeant (1983, p.91-92); Areoligera birama, according to Morgenroth (1968, p.550); Geodia? tripunctata, by implication in Sarjeant (1964b, p.175), who considered Geodia? tripunctata to be a taxonomic junior synonym of Hystrichosphaera furcata; Hystrichosphaera (now Spiniferites) bulloidea, according to Harland (1977b, p.101-102) - however, Lentin and Williams (1981, p.259) retained Hystrichosphaera (as and now Spiniferites) bulloideus; Homotryblium distinctum, according to Jain and Garg (1982, p.69), who considered Homotryblium distinctum to be a taxonomic junior synonym of Spiniferites ramosus subsp. ramosus.  Motile equivalent: Gonyaulax spinifera (Claparède and Lachmann, 1859) Diesing, 1866, according to Dodge (1989, p.289).  The nomenclatural type of the genus Hystrichosphaera remains the holotype of Hystrichosphaera furcata.  This combination was not validly published in Wetzel (1933b, p.35) since the generic name was not validly published until 1937.  The validity/authorship of this name may need to be reconsidered as it appears that Ehrenberg (1837b) did not provide a description.  Age: Late Cretaceous.

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