Hystrichosphaeridium robustum ssp. fissum Sannemann, 1955

Now Multiplicisphaeridium robustum ssp. fissum. Originally Hystrichosphaeridium robustum ssp. fissum, subsequently (and now) Multiplicisphaeridium robustum ssp. fissum. See also Baltisphaeridium robustum ssp. fissum (combination illegitimate).
Holotype: Sannemann, 1955, pl.6, fig.7
Age: Devonian (Late Givetian)