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

Ludlow and Pridoli (Upper Silurian) Graptolites from the Arctic Islands, Canada PDF Author: Alfred C. Lenz
Publisher: NRC Research Press
ISBN: 9780660193267
Category : Nature
Languages : en
Pages : 162

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Book Description
Graptolites flourished from earliest Ordovician to Early Devonian, a time range of about 90 million years, and were widely distributed as marine benthic and planktonic colonial organisms around then-world.