Llandoverian graptolites of the northern Canadian Cordillera
Subtitle: Petalograptus, Cephalograptus, Rhaphidograptus, Dimorphogratus, Retiolitidae, and Monograptidae
By: Alfred C. Lenz.
Series: Life sciences contributions,; no. 130
Publisher: ROM
Published: 1982
Place of publication: Toronto
Language: eng
Number of pages: 154
Subjects: Graptolites -- Northwest Territories; Graptolites -- Yukon Territory; Paleontology -- Silurian; Paleontology -- Northwest Territories; Paleontology -- Yukon Territory
Notes: Bibliography: p. 138-144.