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Ludlow and Pridoli (Upper Silurian) Graptolites from the Arctic Islands, Canada

Alfred C. LenzAnna Kozłowska-DawidziukNational Research Council CanadaNational Research Council Canada. Monograph Publishing Program

出版	NRC Research Press, 2004
主題	Nature / FossilsScience / Earth Sciences / GeologyScience / Paleontology
ISBN	06601932649780660193267
URL	http://books.google.com.hk/books?id=revCvRGLif8C&hl=&source=gbs_api
EBook	SAMPLE

註釋

Graptolites flourished from earliest Ordovician to Early Devonian. This study examines the isolated, uncompressed as well as flattened forms from the Ludlow and Pridoli (Upper Silurian) graptolites of the Arctic, recognizing 46 species of monograptids and retiolitids of which seven are described as new species or subspecies.