Bion ramosum Appendix A

"ramosum" (Ehrenberg, 1838, pl.1, figs.1-2,5) Eisenack, 1938c, p.243 (caption to pl.16, fig.5).  Holotype: not designated.  Lectotype: Ehrenberg, 1838, pl.1, fig.5, designated by Davey and Williams (1966a, p.32).  NOW Spiniferites ramosus.  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.  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 (1964a, p.175), who considered Geodia? tripunctata to be a taxonomic junior synonym of Xanthidium (as Hystrichosphaera) furcatum; Hystrichosphaera (subsequently Spiniferites) bulloidea, according to Harland (1977b, p.101-102) - however, Lentin and Williams (1981, p.259) retained Hystrichosphaera (as Spiniferites) bulloidea; 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).  Age: Late Cretaceous.

Parent: Bion