Hystrichosphaeridium echinoides Maier, 1959

Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Cleistosphaeridium.
Tax. jr. synonym of Spiniferites ramosus (Ehrenberg, 1838) Loeblich Jr. and Loeblich III, 1966, according to Sarjeant, 1983.
Holotype: Maier, 1959, pl.32, figs.5-6
Locus typicus: Schwedeneck-Huestedt, N Germany
Stratum typicum: Middle Oligocene-Middle Miocene
Translation Maier, 1959: LPP

Original description: Maier, 1959, p.318
A species of the genus Hystrichosphaeridium with following characteristics: capsule oval-pear-shaped with numerous thin, simple processes.
Description: Ovale capsule with ornamentad membrane. All processes of equal length and blunt ends. Capsule densely covered with spines.
Dimensions: Diameter 90-107 µm (70-80 µm) 2 specimens.