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Deflandrea rectangularis var. samuelsonii
Deflandrea rectangularis var. samuelsonii Kjellstr÷m, 1973
Originally Deflandrea rectangularis var. samuelsonii, subsequently Deflandrea rectangularis ssp. samuelsonii, thirdly Amphidiadema rectangularis ssp. samuelsonii.
Tax. jr. synonym of Triblastula (now Hystrichosphaeropsis) quasicribrata 0.Wetzel, 1961, according to Gocht, 1976.
Holotype: Kjellström, 1973, fig.18
Age: Maastrichtian
Original diagnosis: Kjellström, 1973, p.22
A variety of Deflandrea rectangularis with rectangular, granular theca. Spherical, psilate inner capsule extending to the lateral margins of the central part of the theca. Archaeopyle intercalary.
Dimensions: Length of theca: 140 µm; diameter of central capsule: 60 µm.
Affinities:
Kjellstr÷m, 1973, p.22: This variety differs from D. rectangularis by having a granular theca wall and a psilate central capsule.
Originally Deflandrea rectangularis var. samuelsonii, subsequently Deflandrea rectangularis ssp. samuelsonii, thirdly Amphidiadema rectangularis ssp. samuelsonii.
Tax. jr. synonym of Triblastula (now Hystrichosphaeropsis) quasicribrata 0.Wetzel, 1961, according to Gocht, 1976.
Holotype: Kjellström, 1973, fig.18
Age: Maastrichtian
Original diagnosis: Kjellström, 1973, p.22
A variety of Deflandrea rectangularis with rectangular, granular theca. Spherical, psilate inner capsule extending to the lateral margins of the central part of the theca. Archaeopyle intercalary.
Dimensions: Length of theca: 140 µm; diameter of central capsule: 60 µm.
Affinities:
Kjellstr÷m, 1973, p.22: This variety differs from D. rectangularis by having a granular theca wall and a psilate central capsule.