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Batioladinium exiguum
Batioladinium? exiguum, (Alberti, 1961), Brideaux, 1975
Originally Broomea, subsequently (and now) Batioladinium?, thirdly Necrobroomea, fourthly Imbatodinium. At the time of the transfer Brideaux, 1975, questionably included this species in Batioladinium. Below, 1990, gave the citation Necrobroomea exigua (Alberti, 1961) comb. nov. Lentin and Williais, 1993, retained this species in Batioladinium.
Below, 1990, suggested that this species may be simply a smooth variant of Batioladinium? (as Necrobroomea) pelliferum (Alberti, 1961) Brideaux, 1975.
Holotype: Alberti, 1961, pl.5, fig.14
Locus tyicus: Bohrung Werle 3, Germany
Stratum typicum: Early Hauterivian
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Original description as Broomea exigua: [Alberti, 1961, p. 26]: (Translation: LPP):
Description:
Shell flattened, outline nearly oval, often with irregular bulges. Epitheca more conical than the smaller hypotheca, antapex blunted. Apical horn short, sharp delimited. The two antapical horns are very short, usually unequal, ends blunted. Shell surface rough. Pylome and girdle questionable.
Dimensions:
Holotype - 74 µm, breadth 39 µm, length of antapical horns 3 and 5 µm, apical horn 12 µm.
Affinities:
Broomea exigua differs from B. jaegeri in the stoudy outline of the shell, and the shape of the antapical horns. The apical horn of B. exigua is much shorter.
Originally Broomea, subsequently (and now) Batioladinium?, thirdly Necrobroomea, fourthly Imbatodinium. At the time of the transfer Brideaux, 1975, questionably included this species in Batioladinium. Below, 1990, gave the citation Necrobroomea exigua (Alberti, 1961) comb. nov. Lentin and Williais, 1993, retained this species in Batioladinium.
Below, 1990, suggested that this species may be simply a smooth variant of Batioladinium? (as Necrobroomea) pelliferum (Alberti, 1961) Brideaux, 1975.
Holotype: Alberti, 1961, pl.5, fig.14
Locus tyicus: Bohrung Werle 3, Germany
Stratum typicum: Early Hauterivian
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Original description as Broomea exigua: [Alberti, 1961, p. 26]: (Translation: LPP):
Description:
Shell flattened, outline nearly oval, often with irregular bulges. Epitheca more conical than the smaller hypotheca, antapex blunted. Apical horn short, sharp delimited. The two antapical horns are very short, usually unequal, ends blunted. Shell surface rough. Pylome and girdle questionable.
Dimensions:
Holotype - 74 µm, breadth 39 µm, length of antapical horns 3 and 5 µm, apical horn 12 µm.
Affinities:
Broomea exigua differs from B. jaegeri in the stoudy outline of the shell, and the shape of the antapical horns. The apical horn of B. exigua is much shorter.