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Hystrichosphaeridium crassipes
Hystrichosphaeridium crassipes (Reade, 1839) Lejeune-Carpentier, 1941
Now Hystrichokolpoma. Originally Xanthidium, subsequently Hystrichosphaeridium, thirdly Litosphaeridium?, fourthly (and now) Hystrichokolpoma.
Taxonomic junior synonym: Hystrichosphaeridium (as Pervosphaeridium) truncigerum, by implication in Yun Hyesu (1981, p.27), who considered Hystrichosphaeridium (as Pervosphaeridium) truncigerum to be the senior synonym - however, Lentin and Williams (1985, p.282) retained Hystrichosphaeridium (as Pervosphaeridium) truncigerum.
Holotype: Reade, 1839, pl.9, fig.2 (lost, according to Lejeune-Carpentier and Sarjeant, 1981)
Neotype: Lejeune-Carpentier, 1941, fig.9; Lejeune-Carpentier and Sarjeant, 1981, pl.3, fig.3, text-fig.6 (designated by LejeuneCarpentier and Sarjeant, 1981)
Age: Late Cretaceous
Now Hystrichokolpoma. Originally Xanthidium, subsequently Hystrichosphaeridium, thirdly Litosphaeridium?, fourthly (and now) Hystrichokolpoma.
Taxonomic junior synonym: Hystrichosphaeridium (as Pervosphaeridium) truncigerum, by implication in Yun Hyesu (1981, p.27), who considered Hystrichosphaeridium (as Pervosphaeridium) truncigerum to be the senior synonym - however, Lentin and Williams (1985, p.282) retained Hystrichosphaeridium (as Pervosphaeridium) truncigerum.
Holotype: Reade, 1839, pl.9, fig.2 (lost, according to Lejeune-Carpentier and Sarjeant, 1981)
Neotype: Lejeune-Carpentier, 1941, fig.9; Lejeune-Carpentier and Sarjeant, 1981, pl.3, fig.3, text-fig.6 (designated by LejeuneCarpentier and Sarjeant, 1981)
Age: Late Cretaceous