Comment:It appears that Stein combined X. ramosum and X. furcatum under Cladopyxis brachiolata.
This name is now considered part of Hystrichosphaera ramosa (Ehrenb.) R.J.Davey & G.L.Williams ( see Davey et al 1966 Bulletin of the British Museum (Natural History) Geology supl 3.). This is a fossil dinoflagellate cyst.