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Middle Cambrian Articulate Brachiopods from the Southern New England Fold Belt, Northeastern N.S.W., Australia

Glenn A. Brock
Journal of Paleontology
Vol. 72, No. 4 (Jul., 1998), pp. 604-619
Published by: Paleontological Society
Stable URL: http://www.jstor.org/stable/1306689
Page Count: 16
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Middle Cambrian Articulate Brachiopods from the Southern New England Fold Belt, Northeastern N.S.W., Australia
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Abstract

Calcareous articulate brachiopods are rare components of the high diversity, phosphatic, silicified, and epidote coated shelly fauna derived from Middle Cambrian (Floran-Undillan) allochthonous limestone clasts from the Murrawong Creek Formation, southern New England Fold Belt, northeastern New South Wales, Australia. Three taxa are described, the kutorginids Nisusia metula n. sp., and Yorkia sp. indet., and the protorthid Arctohedra austrina n. sp. Yorkia is documented from Australia for the first time. An unusual valve (possibly a brachial valve) of enigmatic affinity is also reported and illustrated. Generically, the taxa provide broad regional paleobiogeographic links with the "first discovery limestone" Member of the Coonigan Formation, western New South Wales, and the Current Bush Limestone in the Georgina Basin, northern Australia, and globally, with broadly contemporaneous sequences in western North America, Siberia, and South China.

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