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Tiddalickia manitobensis, a new dictyosponge, and an unusual specimen of the lithistid sponge, Aulocopella winnipegensis Rauff, from the Ordovician of Manitoba

Published online by Cambridge University Press:  19 May 2016

J. Keith Rigby  and
Edward I. Leith
J. Keith Rigby
Affiliation:
1Department of Geology, Brigham Young University, Provo, Utah 84602
Edward I. Leith
Affiliation:
2Department of Geological Sciences, University of Manitoba, Winnipeg R3T 2N2
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Abstract

The new thin-walled vasiform dictyospongid hexactinellid, Tiddalickia manitobensis, is described from the Ordovician Red River Formation at McBeth Point on Lake Winnipeg, Manitoba. Vertical spicule bundles are an outer? part of the wall and horizontal spicule bundles an inner? different level within the wall. Bundle quadrules are only half the size of those in Tiddalickia quadrata Rigby and Webby, 1988. A complete anthaspidellid lithistid, Aulocopella winnipegensis Rauff, 1895, is described from a glacial erratic recovered from near Reston, Manitoba.

Type
Research Article
Information
Journal of Paleontology , Volume 63 , Issue 5 , September 1989 , pp. 550 - 553
Copyright
Copyright © The Paleontological Society 

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