Hystrichosphaeridium tridactylites Valensi, 1955

Now Florentinia. Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Achomosphaera, fourthly Silicisphaera, fifthly (and now) Florentinia. See also Hystrichokolpoma (combination not validly published).

Holotype: Valensi, 1955, fig.1D
Age: Cretaceous