Biodiversity Heritage Library
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By "Rudkin, David M., 1951-"
The type species of the Ordovician trilobite genus Isotelus I. gigas Dekay, 1824 /
By: Rudkin, David M., - Tripp, Ronald P. - Royal Ontario Museum.
Publication info: Toronto :Royal Ontario Museum,1988.
Contributed by: Royal Ontario Museum (archive.org)