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Evittia cincta
Evittia cincta (Cookson and Eisenack, 1958) Pocock, 1972
Combination illegitimate since the generic name Evittia Pocock, 1972 is illegitimate.
Now Ovoidinium. Originally Deflandrea, subsequently Evittia (combination illegitimate), thirdly Pocockia, fourthly (and now) Ovoidinium, fifthly Ascodinium.
Holotype: Cookson and Eisenack, 1958, pl.4, fig.3
Locus typicus: Birdrong Formation, W Australia
Stratum typicum: Late Neocomian-Early Aptian
Original description: Cookson and Eisenack, 1958, p. 26: Deflandrea cincta
Theca elongated, clearly seperated into an epitheca and hypotheca by a strongly marked transverse girdle, a short longitudinal furrow is situated on the ventral surface of the hypotheca. The epitheca is convex laterally and narrows rather abruptly towards a short terminal truncated horn with a small central projection. The hypotheca is slightly narrower than the epitheca and posteriorly is prolonged on one side into a short, broad, sharply-pointed horn and on the other into a broadly conical expansion. The external membrane is somewhat coarsly granular. The capsule is smooth, broadly oval, and usually extends laterally to the pouter membrane.
Dimensions: Type: theca 88x52 Ám; capsule 55x40 Ám. Range: theca 81-118x52-66 Ám; capsule 52-66x45-57 Ám.
Affinities:
Cookson and Eisenack, 1958, p. 26: Deflandrea cincta
Deflandrea cincta althoudh differing from the genotype D. phosphoritica Eis. and other species in having a prominent transverse girdle, is, by its shape, absence of plates and in the presence of an internal capsule, clearly a member of the genus Deflandrea.
Combination illegitimate since the generic name Evittia Pocock, 1972 is illegitimate.
Now Ovoidinium. Originally Deflandrea, subsequently Evittia (combination illegitimate), thirdly Pocockia, fourthly (and now) Ovoidinium, fifthly Ascodinium.
Holotype: Cookson and Eisenack, 1958, pl.4, fig.3
Locus typicus: Birdrong Formation, W Australia
Stratum typicum: Late Neocomian-Early Aptian
Original description: Cookson and Eisenack, 1958, p. 26: Deflandrea cincta
Theca elongated, clearly seperated into an epitheca and hypotheca by a strongly marked transverse girdle, a short longitudinal furrow is situated on the ventral surface of the hypotheca. The epitheca is convex laterally and narrows rather abruptly towards a short terminal truncated horn with a small central projection. The hypotheca is slightly narrower than the epitheca and posteriorly is prolonged on one side into a short, broad, sharply-pointed horn and on the other into a broadly conical expansion. The external membrane is somewhat coarsly granular. The capsule is smooth, broadly oval, and usually extends laterally to the pouter membrane.
Dimensions: Type: theca 88x52 Ám; capsule 55x40 Ám. Range: theca 81-118x52-66 Ám; capsule 52-66x45-57 Ám.
Affinities:
Cookson and Eisenack, 1958, p. 26: Deflandrea cincta
Deflandrea cincta althoudh differing from the genotype D. phosphoritica Eis. and other species in having a prominent transverse girdle, is, by its shape, absence of plates and in the presence of an internal capsule, clearly a member of the genus Deflandrea.