Kleithriasphaeridium porosispinum

porosispinum Davey, 1982b, p.29–30, pl.10, figs.8–12.  Holotype: Davey, 1982b, pl.10, figs.10–12.  Originally (and now) Kleithriasphaeridium, subsequently Tityrosphaeridium.  Lentin and Williams (1985, p.209) retained this species in Kleithriasphaeridium.  Age: late Kimmeridgian–late Ryazanian.

Parent: Kleithriasphaeridium