"Cleistosphaeridium panniforme" (Gerlach, 1961, p.196-198, pl.28, fig.13) Stover and Evitt, 1978, p.31.
TYPE: Holotype: Gerlach, 1961, pl.28, fig.13. HISTORY: Originally Baltisphaeridium (Appendix A), subsequently Impletosphaeridium, thirdly Cleistosphaeridium. SYNONYM(S): Taxonomic senior synonym: Hystrichosphaeridium (as Systematophora) placacanthum, according to Sarjeant (1984b, p.86-87). AGE: mid Oligocene.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |