Hystrichosphaeridium? huecospinosum Cramer, 1964

Now Umbellasphaeridium. Originally Hystrichosphaeridium?, subsequently Florisphaeridium, thirdly (and now) Umbellasphaeridium. See also Baltisphaeridium? (combination not validly published).
Cramer, 1964, questionably included this species in Hystrichosphaeridium.
Holotype: Cramer, 1964, pl.6, fig.2
Age: Devonian (Emsian)

Original description (Cramer, 1964)
Dimensions. diameter up to 35 µm, usually smaller.
Central body and processes hollow with not uniform walls. The central body is roughly spherical, has a thin wall with a granulate sculpture and is very transparent. The processes are hollow and are open at the end. The roset-like structures at the end of the processes may be joined forming a kind of"outer shell". The wall of the
processes is psilate to rugulate or verrucate, the "outer shell" has a granulate surface. 5 to 13 (8) processes in optical section. Frequency and provenance. Rare in the upper part of the La Vid Shales. Holotype from
0099, La Vid de Gordon, NW-Spain. Known stratigraphical range.Upper part of the LaVid Shales, Emsian (part), NW-Spain.