First occurrence and biogeographical significance of the operculate tetracoral Goniophyllum from the Wenlock (Silurian) of Baillie-Hamilton Island, Canadian Arctic

Opercula of the Silurian tetracoral genera Goniophyllum and Rhizophyllum are described from early Wenlock (Sheinwoodian) strata of the Cape Phillips Formation, Baillie-Hamilton Island, Canadian Arctic. This is the first record of Goniophyllum in northern Laurentia, emphasising previously recognised...

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Bibliographic Details
Main Author: Wright, Anthony J
Format: Article in Journal/Newspaper
Language:unknown
Published: Research Online 2013
Subjects:
Goniophyllum
Rhizophyllum
tetracoral
operculum
biogeography
Wenlock
Silurian
Arctic
Baillie-Hamilton Island
GeoQuest
Medicine and Health Sciences
Social and Behavioral Sciences
Baillie
Cape Phillips
Online Access:https://ro.uow.edu.au/smhpapers/1090
https://ro.uow.edu.au/cgi/viewcontent.cgi?article=2108&context=smhpapers
Description
Summary:Opercula of the Silurian tetracoral genera Goniophyllum and Rhizophyllum are described from early Wenlock (Sheinwoodian) strata of the Cape Phillips Formation, Baillie-Hamilton Island, Canadian Arctic. This is the first record of Goniophyllum in northern Laurentia, emphasising previously recognised faunal connections of this region with Baltica and Avalonia. As the opercula of Goniophyllum belong mostly to very early juveniles, which have not previously been documented, specific identification is impossible.

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