Back
Hystrichosphaeropsis borussica
Hystrichosphaeropsis borussica (Eisenack, 1954) Sarjeant, 1966
Combination not validly published, since Sarjeant, 1966, did not fully reference the basionym.
The combination in Sarjeant, 1967, was also not validly published for the same reason.
Now Rottnestia. Originally Hystrichosphaera, subsequently (and now) Rottnestia, thirdly Triblastula, fourthly Hystrichosphaeropsis (combination not validly published).
Taxonomic junior synonym: Hystrichosphaeropsis jubata (name not validly published), according to May (1980, p.24).
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.
Combination not validly published, since Sarjeant, 1966, did not fully reference the basionym.
The combination in Sarjeant, 1967, was also not validly published for the same reason.
Now Rottnestia. Originally Hystrichosphaera, subsequently (and now) Rottnestia, thirdly Triblastula, fourthly Hystrichosphaeropsis (combination not validly published).
Taxonomic junior synonym: Hystrichosphaeropsis jubata (name not validly published), according to May (1980, p.24).
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.