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Baltisphaeridium rhabdophorum
Baltisphaeridium rhabdophorum, (Valensi, 1955), Downie and Sarjeant, 1963
Combination not validly published since Downie and Sarjeant, 1963 did not fully reference the basionym.
Now Dapsilidinium?. Originally Hystrichosphaeridium, subsequently Baltisphaeridium (combination not validly published), thirdly Polysphaeridium?, fourthly (and now) Dapsilidinium?.
Holotype: Valensi 1955, pl.3, fig.7
Age: Late Cretaceous
Combination not validly published since Downie and Sarjeant, 1963 did not fully reference the basionym.
Now Dapsilidinium?. Originally Hystrichosphaeridium, subsequently Baltisphaeridium (combination not validly published), thirdly Polysphaeridium?, fourthly (and now) Dapsilidinium?.
Holotype: Valensi 1955, pl.3, fig.7
Age: Late Cretaceous