1. Craptotites of New York: Part 2: graptolites of the higher beds
Author: \Rudolph Ruedemann
Library: National Library and Archives of Islamic Republic of Iran (Tehran)
Subject: گراپتولیتها -- ایالات متحده -- نیویورک.
Classification :
QE
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۵
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ر
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گ
۴ ۱۲۸۷
2. Ludlow and Pridoli (Upper Silurian) graptolites from the Arctic Islands, Canada
Author: Alfred Lenz, Anna Kozłowska-Dawidziuk.
Library: Center and Library of Islamic Studies in European Languages (Qom)
Subject: Graptolites-- Arctic Archipelago (Nunavut and N.W.T.),Graptolites-- Arctic Regions.,Paleontology-- Arctic regions.,Paleontology-- Silurian.
