Title: Ludlow and Pridoli (Upper Silurian) graptolites from the Arctic Islands, Canada
Subjects: Graptolites, Graptolithes, Paleontology, Paléontologie
Places: Arctic Archipelago (Nunavut and N.W.T.), Arctic regions, Arctique, Arctique, Archipel (Nunavut et T.N.-O.)
Time periods: Silurian, Silurien