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Baltisphaeridium machaerophorum
Baltisphaeridium machaerophorum, (Deflandre and Cookson, 1955), Gerlach, 1961
Now Lingulodinium. Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly (and now) Lingulodinium; see also Cleistosphaeridium (combination not validly published).
Tax. sr. synonym of Cleistosphaeridium disjunctum Davey et al., 1966, according to Reid, 1974.
Tax. sr. synonym of Hystrichosphaeridium redonense Morzadec-Kerfourn, 1966, according to Harland, 1977.
Tax. sr. synonym of Hystrichosphaeridium ashdodense Rossignol, 1962, according to Wall, 1967. Wall and Dale, 1968 and Matsuoka, 1985 considered this species to represent the encysted stage of Gonyaulax polyedra Stein, 1883.
Holotype: Deflandre and Cookson, 1955, pl.9, fig.4
Age: Miocene
Now Lingulodinium. Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly (and now) Lingulodinium; see also Cleistosphaeridium (combination not validly published).
Tax. sr. synonym of Cleistosphaeridium disjunctum Davey et al., 1966, according to Reid, 1974.
Tax. sr. synonym of Hystrichosphaeridium redonense Morzadec-Kerfourn, 1966, according to Harland, 1977.
Tax. sr. synonym of Hystrichosphaeridium ashdodense Rossignol, 1962, according to Wall, 1967. Wall and Dale, 1968 and Matsuoka, 1985 considered this species to represent the encysted stage of Gonyaulax polyedra Stein, 1883.
Holotype: Deflandre and Cookson, 1955, pl.9, fig.4
Age: Miocene