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Silurian calcareous algae, cyanobacteria, and microproblematica from the Alexander terrane, Alaska

Published online by Cambridge University Press:  20 May 2016

Robert Riding  and
Constance M. Soja
Robert Riding
Affiliation:
Department of Geology, University of Wales College of Cardiff, Cardiff CF1 3YE, U.K.
Constance M. Soja
Affiliation:
The Mary Ingraham Bunting Institute, Radcliffe Research and Study Center, 34 Concord Avenue, Cambridge, Massachusetts 02138, U.S.A.
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Abstract

Limestones of Silurian age (late Llandovery–Ludlow) from the Heceta Formation of southeastern Alaska (Alexander terrane) yield a diverse assemblage of calcified microbial organisms. Fourteen taxa are described, including the cyanobacteria Girvanella and ?Hedstroemia, possible cyanobacteria Epiphyton, Ludlovia, and Renalcis, three species of “Solenopora,” and microproblematica Rothpletzella and Wetheredella. Diagnoses and descriptions are also given of the new epiphytacean genus Hecetaphyton n. gen. and new microproblematica genera Tuxekanella n. gen. and Sphaerina n. gen.

Type
Research Article
Information
Journal of Paleontology , Volume 67 , Issue 5 , September 1993 , pp. 710 - 728
Copyright
Copyright © The Paleontological Society 

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