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Isabelidinium spasicum
Isabelidinium spasicum (Grigorovich, 1969) Lentin and Williams, 1981
Originally Australiella, subsequently (and now) Isabelidinium.
Holotype: Grigorovich, 1969, fig.1
Locus typicus: Karpathians, District of Lwow, Russia
Stratum typicum: Late Cretaceous
Translation Grigorovich, 1969: LPP
Original description: Grigorovich, 1969, p.67: Australiella sparsica
Cyst oval, sligthly elongated in longitudinal direction. Epithec in the upper part slightly widened, resulting in the typical shoulders, ending in a short apical horn. Hypotheca trapezoidal, without antapical horns. Inner body oval, lateral closely appressed to the theca-wall, smooth. Archaeopyle "mushroom" shaped. Theka thin, transparent, nearly colorless.
Dimensions: Length of theca 82.5 Ám, breadth 55.0 Ám, length of inner body 27.5 Ám, breadth 55.0 Ám.
Affinities:
Grigorovich, 1969, p.67: Australiella sparsica
Australiella sparsica differs from Deflandrea bakeri (Deflandre and Cookson, 1955) in the form of the inner body, the hypotheca and the archaeopyle. Australiella cooksoni (Alberti, 1959) differs in the form of the hypotheca, the archaeopyle and the generall outline of the theca.
Originally Australiella, subsequently (and now) Isabelidinium.
Holotype: Grigorovich, 1969, fig.1
Locus typicus: Karpathians, District of Lwow, Russia
Stratum typicum: Late Cretaceous
Translation Grigorovich, 1969: LPP
Original description: Grigorovich, 1969, p.67: Australiella sparsica
Cyst oval, sligthly elongated in longitudinal direction. Epithec in the upper part slightly widened, resulting in the typical shoulders, ending in a short apical horn. Hypotheca trapezoidal, without antapical horns. Inner body oval, lateral closely appressed to the theca-wall, smooth. Archaeopyle "mushroom" shaped. Theka thin, transparent, nearly colorless.
Dimensions: Length of theca 82.5 Ám, breadth 55.0 Ám, length of inner body 27.5 Ám, breadth 55.0 Ám.
Affinities:
Grigorovich, 1969, p.67: Australiella sparsica
Australiella sparsica differs from Deflandrea bakeri (Deflandre and Cookson, 1955) in the form of the inner body, the hypotheca and the archaeopyle. Australiella cooksoni (Alberti, 1959) differs in the form of the hypotheca, the archaeopyle and the generall outline of the theca.