Hystrichosphaeridium multipilosum Eisenack, 1931, ex Eisenack, 1938

Now Baltisphaeridium multipilosum. Originally Hystrichosphaeridium multipilosum, subsequently (and now) Baltisphaeridium multipilosum. See also Ovum hispidum ssp. multipilosum (name not validly published).
Holotype: Eisenack, 1931, pl.5, fig.22 (as Ovum hispidum ssp. multipilosum, lost according to Eisenack, 1959)
Neotype: Eisenack, 1959, pl.15, fig.11 (designated by Eisenack, 1959)
Age: Silurian