Acritax - Acritax_Camb - Annulum Acritax - Acritax_Camb - Annulum

Annulum


Classification: Acritax_Camb -> Annulum
Sister taxa: Acrum, Actinotodissus, Annulum, Archaeodiscina, Asteridium, Baltisphaeridium, Celtibarium, Comasphaeridium, Cristallinium, Cymatiogalea, Cymatiosphaera, Dasydiacrodium, Elektoriskos, Eliasum, Fimbriaglomerella, Frankea, Globosphaeridium, Granomarginata> >>

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Daughter taxa (time control age-window is: 0-800Ma)
Annulum squamaceum

Annulum sp.

Taxonomy:

Citation: Annulum Fombella 1978
taxonomic rank: genus
Type species: Annulum difuminatum Fombella 1978
JWIP Catalog pages: Annulum *

Geological Range:
Last occurrence (top): at top of Furongian Epoch (100% up, 486.9Ma, in Age 10 stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Age 3 Stage (514.50-521.00Ma, base in Age 3 stage). Data source: Total of ranges of species in this database

Plot of occurrence data: <% graph_caption %>

References:

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. gs


Acritax - Acritax_Camb - Annulum by: Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 21-7-2024

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