Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
Annulum squamaceum | ||||
Annulum sp. |
Taxonomy:
Geological Range:
Last occurrence (top): within Cambrian Period (485.37-541Ma, top in Age 10 stage). Data source:
First occurrence (base): within Cambrian Period (485.37-541Ma, base in Fortunian stage). Data source:
Plot of occurrence data: <% graph_caption %>
Fombella, M. A. (1978). Acritarcos de la Formacion Oville, edad Cambrico medio-Tremadoc, Provincia de Leon, Espana. Translated Title: Acritarchs from the Oville Formation, Middle Cambrian-Tremadocian of Leon Province, Spain. In, Cramer, F. H., Diez, M. d. C. R. & Gutierrez, M. (eds) I coloquio internacional de palinologia. Translated Title: First international palynological conference. Palinologia, Numero extraordinario . 1: 245-261. gsReferences:
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