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The First Occurrence of the Burgess Shale Demosponge Hazelia palmata Walcott, 1920, in the Cambrian of Utah

J. Keith Rigby, Lloyd F. Gunther and Freida Gunther
Journal of Paleontology
Vol. 71, No. 6 (Nov., 1997), pp. 994-997
Published by: Paleontological Society
Stable URL: http://www.jstor.org/stable/1306598
Page Count: 4
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The First Occurrence of the Burgess Shale Demosponge Hazelia palmata Walcott, 1920, in the Cambrian of Utah
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Abstract

A single specimen of Hazelia palmata Walcott, 1920, was collected from the Middle Cambrian Marjum Formation near Marjum Pass, in the central House Range, western Utah. This is a first occurrence of the species outside the Burgess shale region of British Columbia, Canada. The flattened oval impression of the monaxonid demosponge shows characteristic tufts and spicule structures of the species.

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