Silicisphaera tridactylites (Valensi, 1955) Davey and Verdier, 1976

Now Florentinia. Originally Hystrichosphaeridium, subsequently Baltisphaeridium (an acritarch genus), thirdly Achomosphaera, fourthly Silicisphaera, fifthly (and now) Florentinia; see also Hystrichokolpoma (combination not validly published).
Holotype: Valensi, 1955, fig.1D
Age: Cretaceous