HOME  Hierarchy  Table  Index  References

Appendix A

Xanthidium ramosum

"Xanthidium ramosum" Ehrenberg, 1838, pl.1, figs.1-2,5.

TYPE: Holotype: not designated. Lectotype: Ehrenberg, 1838, pl.1, fig.5, designated by Davey and Williams (1966a, p.32).

HISTORY: NOW: Spiniferites ramosus. Originally Xanthidium ramosum, subsequently (and now) Spiniferites ramosus, thirdly Ovum hispidum subsp. ramosum (combination not validly published, Appendix A), fourthly Hystrichosphaera ramosa, fifthly Bion ramosum (Appendix A).

SYNONYM(S): 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 (Appendix A), by implication in Sarjeant (1964a, p.175), who considered Geodia? tripunctata to be a taxonomic junior synonym of Hystrichosphaera furcata; Hystrichosphaera (as 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.


Infraspecific taxa:


Go up one level.
DINOFLAJ (c) 1998