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New Genera of Acrotretids from the Cambrian of Australia and the United States
A. J. Rowell
R. A. Henderson
出版
University of Kansas Paleontological Institute
, 1978
URL
http://books.google.com.hk/books?id=xUPoRd0Zti4C&hl=&source=gbs_api
註釋
Cooperative studies have shown the presence of three new genera of inarticulate acrotretid brachiopods in Upper Cambrian rocks of both Australia and the United States, but none of their species are common to both regions.
