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Middle and Upper Ordovician Nautiloid Cephalopods of the Cincinnati Arch Region of Kentucky, Indiana, and Ohio
Robert C. Frey
Geological Survey (U.S.)
出版
U.S. Government Printing Office
, 1995
URL
http://books.google.com.hk/books?id=528QAqZckwQC&hl=&source=gbs_api
EBook
FULL_PUBLIC_DOMAIN
註釋
Stratigraphic distribution, paleoecology, biogeography, and systematic paleontology of 50 species of Ordovician nautiloids from the midcontinent.
