Family is supported by recent Russian workers, although in some sources Prunobrachium is assigned to Sponguridae, see discussion in Palechek, 2018. Note also, correct spelling is Prunobrachiidae, from type genus Prunobrachium.
Palechek, T. N. (2018). Distribution and stratigraphic potential of the Mesozoic radiolarian family Prunobrachidae. <em>Stratigraphy and Geological Correlation.</em> 26(4): 459-473.