Petaloferidium borracherosum Appendix A

borracherosum (Cramer, 1964, p.289, pl.1, fig.11; text-fig.16, no.6) Sarjeant and Vavrdova, 1997, p.29.  Holotype: Cramer, 1964, pl.1, fig.11.  Originally Baltisphaeridium (Appendix A), subsequently Multiplicisphaeridium (Appendix A), thirdly Hystrichosphaeridium (combination not validly published), fourthly (and now) Petaloferidium.  Age: Silurian (Ludlow).

Parent: Petaloferidium