Geological Range: Last occurrence (top): within (-Ma, top in "Holocene" stage). First occurrence (base): within (-Ma, base in "Holocene" stage).
Plot of occurrence data:
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References:
Burmann, G. (1970). Weitere organische mikrofossilien aus dem unteren Ordovizium. Paläontologische Abhandlungen Abteilung B Paläobotanik. 3: 289-332. gs
Acritax - Acritax_Camb - Frankeaby: Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 29-9-2023