Alfred C. Lenz

1929

• Llandoverian graptolites of the northern Canadian Cordillera
• Ludlow and Pridoli (Upper Silurian) graptolites from the Arctic Islands, Canada
• Late Wenlock and Ludlow (Silurian) ; Plectograptinae (retiolitid graptolites) ; Cape Phillips Formation, Arctic Canada
• Lower and middle paleozoic sediments and paleontology of Royal Creek and Peel River, Yukon, and Powell Creek, N.W.T
• Upper Wenlock (Silurian) graptolites of Arctic Canada