Taxonomy:
Geological Range:
Last occurrence (top): within (-Ma, top in "Holocene" stage).
First occurrence (base): within (-Ma, base in "Holocene" stage).
Plot of occurrence data: <% graph_caption %>
Burmann, G. (1970). Weitere organische mikrofossilien aus dem unteren Ordovizium. Paläontologische Abhandlungen Abteilung B Paläobotanik. 3: 289-332. gsReferences:
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