Baltisphaeridium tridactylites, (Valensi, 1955), Downie and Sarjeant, 1965

Now Florentinia. Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Achomosphaera, fourthly Silicisphaera, fifthly (and now) Florentinia- see also Hystrichokolpoma (combination not validly published). This combination was not validly published in Downie and Sarjeant, 1963 since these authors did not fully reference the basionym.

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