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Rottnestia borussica ssp. borussica
Rottnestia borussica ssp. borussica
Autonym
Holotype: Eisenack, 1954, pl. 9, fig. 5
Stratum typicum: Early Oligocene
Locus typicus: Palmnicken, Samland, E Prussia, Russia
Translation Eisenack, 1954: LPP
Original description: Eisenack, 1954, p. 62-63: Hystrichosphaera borussica
Remark: the specimens depicted in Eisenack, 1954, are oriented upside-down.
Diagnosis: Central body oval, tabulation like in H. speciosa or H. wetzeli, the lower pole bearing an extensive system of wing-ledges, reaching onto the equatorial zone, but, in contrast to H. wetzeli, absent on the upper pole.
Description (annotated): The tabulation of the approximately oval central body is determined by septa, similar to those in H. speciosa and H. wetzeli, viz.
Autonym
Holotype: Eisenack, 1954, pl. 9, fig. 5
Stratum typicum: Early Oligocene
Locus typicus: Palmnicken, Samland, E Prussia, Russia
Translation Eisenack, 1954: LPP
Original description: Eisenack, 1954, p. 62-63: Hystrichosphaera borussica
Remark: the specimens depicted in Eisenack, 1954, are oriented upside-down.
Diagnosis: Central body oval, tabulation like in H. speciosa or H. wetzeli, the lower pole bearing an extensive system of wing-ledges, reaching onto the equatorial zone, but, in contrast to H. wetzeli, absent on the upper pole.
Description (annotated): The tabulation of the approximately oval central body is determined by septa, similar to those in H. speciosa and H. wetzeli, viz.