Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
Annulum squamaceum | ||||
Annulum sp. |
Taxonomy:
Geological Range:
Last occurrence (top): at top of Furongian Epoch (100% up, 485.3Ma, in Tremadocian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Age 3 Stage (514-520Ma, base in Age 3 stage). Data source: Total of ranges of species in this database
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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