Upper Wenlock and Ludlow (Silurian) Plectograptinae (retiolitid graptolites), Cape Phillips Formation, Artic Canada
A.C. Lenz
Pages: 20 pls., 4 text-figs.
Issue: 342
Year published: 1993
A.C. Lenz
Pages: 20 pls., 4 text-figs.
Issue: 342
Year published: 1993