Hystrichosphaeridium hirundo

"hirundo" Eisenack, 1958a, p.404–405, pl.24, fig.12.  Emendation: Sarjeant, 1985a, p.76–77, as Achomosphaera hirundo.  Holotype: Eisenack, 1958a, pl.24, fig.12.  NOW Cordosphaeridium?.  Originally Hystrichosphaeridium, subsequently Achomosphaera, thirdly Lanternosphaeridium, fourthly (and now) Cordosphaeridium?, fifthly Spiniferites?.  N.I.A.  Age: Early Cretaceous.

Parent: Hystrichosphaeridium