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Hystrichosphaeridium triradicosum

"Hystrichosphaeridium triradicosum" Tasch in Tasch et al., 1964, p.194, pl.2, figs.4,14.

TYPE: Holotype: Tasch et al., 1964, pl.2, figs.4,14.

SYNONYM(S): Taxonomic senior synonym: Hystrichosphaeridium (now Kiokansium) unituberculatum, according to Stover and Evitt (1978, p.267).

AGE: Albian.


Infraspecific taxa:


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