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Batioladinium daviesii
Batioladinium daviesii, Lentin and Vozzhennikova, 1990
Holotype: Dörhöfer and Davies, 1980, fig.30D (as Imbatioladinium konradjevii Vozzhennikova, 1967); Lentin and Vozzhennikova, 1990, text-fig.45
Locus typicus: Amund Ringness Island, Arctic Canada
Stratum typicum: Late Valanginian
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Original description: [Lentin and Vozzhennikova, 1990, p. 82]
Description:
Cyst shape elongate oval with one long apical and two short antapical horns autophragma ornamented with dense, coarse granules which are randomly distributed over the entire surface of the autophragm; paratabulation indicated by the archeopyle margin only;
archeopyle apical, Type A or possibly Type AI;
paracingulum very faintly discernible, dividing the cyst into two unequal parts, the epicyst being longer than the hypocyst;
parasulcus not indicated.
Dimensions/Size:
Holotype, length 88 µm, width 39 µm.
Affinities: (p.83):
Batioladinium daviesii most closely resembles B. micropodum which has a shorter apical horn, less distinct antapical horns, much finer granulations ant is without any indication of a paracingulum. There is really little similarity between the species Batioladinium daviesii and Imbatodinium kondratjevii. The former has random distribution of ornament and a barely discernible paracingulum while the latter has large pustules on the hypocyst which grade into minute granules near the apex as well as a very distinct paracingulum.
Holotype: Dörhöfer and Davies, 1980, fig.30D (as Imbatioladinium konradjevii Vozzhennikova, 1967); Lentin and Vozzhennikova, 1990, text-fig.45
Locus typicus: Amund Ringness Island, Arctic Canada
Stratum typicum: Late Valanginian
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description: [Lentin and Vozzhennikova, 1990, p. 82]
Description:
Cyst shape elongate oval with one long apical and two short antapical horns autophragma ornamented with dense, coarse granules which are randomly distributed over the entire surface of the autophragm; paratabulation indicated by the archeopyle margin only;
archeopyle apical, Type A or possibly Type AI;
paracingulum very faintly discernible, dividing the cyst into two unequal parts, the epicyst being longer than the hypocyst;
parasulcus not indicated.
Dimensions/Size:
Holotype, length 88 µm, width 39 µm.
Affinities: (p.83):
Batioladinium daviesii most closely resembles B. micropodum which has a shorter apical horn, less distinct antapical horns, much finer granulations ant is without any indication of a paracingulum. There is really little similarity between the species Batioladinium daviesii and Imbatodinium kondratjevii. The former has random distribution of ornament and a barely discernible paracingulum while the latter has large pustules on the hypocyst which grade into minute granules near the apex as well as a very distinct paracingulum.