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Hystrichosphaeridium biforme
Hystrichosphaeridium biforme Wiesner, 1936, p.154, pl.7, fig.9 ex Deflandre, 1946a, card 881.
Originally Hystrichosphaera (name not validly published), subsequently Hystrichosphaeridium, thirdly (and now) Hystrichosphaeridium?. Questionable assignment: Stover and Evitt (1978, p.56) as a problematic species.
The name Hystrichosphaera biformis was not validly published in Wiesner (1936), since the generic name Hystrichosphaera was not validly published until 1937.
Holotype: Wiesner, 1936, pl.7 fig.9
Age: Late Cretaceous
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Original description: [Wiesner, 1936] (translated from French):
Figure 9, Hystrichosphaera biformis n. sp. is, in our opinion, the only known representative of a new section, the "Biformes". It differs from all the others by the presence of protuberances of two forms, one being short and wide, the other thin and only very slightly exceeding the previous ones in length. All these protuberances are open at their proximal end, and the small ones have a flared end, as we find them in Hystrichosphaera tubifera (EHRBG.).
Originally Hystrichosphaera (name not validly published), subsequently Hystrichosphaeridium, thirdly (and now) Hystrichosphaeridium?. Questionable assignment: Stover and Evitt (1978, p.56) as a problematic species.
The name Hystrichosphaera biformis was not validly published in Wiesner (1936), since the generic name Hystrichosphaera was not validly published until 1937.
Holotype: Wiesner, 1936, pl.7 fig.9
Age: Late Cretaceous
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Original description: [Wiesner, 1936] (translated from French):
Figure 9, Hystrichosphaera biformis n. sp. is, in our opinion, the only known representative of a new section, the "Biformes". It differs from all the others by the presence of protuberances of two forms, one being short and wide, the other thin and only very slightly exceeding the previous ones in length. All these protuberances are open at their proximal end, and the small ones have a flared end, as we find them in Hystrichosphaera tubifera (EHRBG.).