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Dinogymnium euclaense
Dinogymnium euclaense Cookson and Eisenack, 1970
Now Alisogymnium. Originally Dinogymnium, subsequently (and now) Alisogymnium.
Holotype: Cookson and Eisenack, 1970, pl.10, fig.12; Lentin and Vozzhennikova, 1990, Appendix A, fig.35
Locus typicus: Madura No. 1 Bore, Eucla Basin, Western Australia
Stratum typicum: Senonian
Original description: Cookson and Eisenack, 1970, p.139
Shell small, consisting of a conical, longitudinally striated epitheca and a smooth hypotheca about three-quarters of a sphere in outline. The two portions are separated by a rather deep, circular, transverse girdle, the ends of which form a longitudinal furrow which extends downwards for varying distances but not to the antapex.
Dimensions: Holotype, c. 34 Ám long, c. 22 Ám wide. Range of 14 specimens: 32-42 Ám long, 19-30 Ám broad.
Now Alisogymnium. Originally Dinogymnium, subsequently (and now) Alisogymnium.
Holotype: Cookson and Eisenack, 1970, pl.10, fig.12; Lentin and Vozzhennikova, 1990, Appendix A, fig.35
Locus typicus: Madura No. 1 Bore, Eucla Basin, Western Australia
Stratum typicum: Senonian
Original description: Cookson and Eisenack, 1970, p.139
Shell small, consisting of a conical, longitudinally striated epitheca and a smooth hypotheca about three-quarters of a sphere in outline. The two portions are separated by a rather deep, circular, transverse girdle, the ends of which form a longitudinal furrow which extends downwards for varying distances but not to the antapex.
Dimensions: Holotype, c. 34 Ám long, c. 22 Ám wide. Range of 14 specimens: 32-42 Ám long, 19-30 Ám broad.