Geological Range: Last occurrence (top): at top of (100% up, 0Ma, in "Holocene" stage). Data source: Total of ranges of the species in this database First occurrence (base): within (-Ma, base in "Holocene" stage). Data source: Total of ranges of species in this database
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: 8-9-2024