William H. Fritz
1928
Fifteen stratigraphic sections from the lower Cambrian of the Mackenzie Mountains, northwestern Canada- Lower Cambrian trilobites from the Sekwi formation type section, Mackenzie Mountains, Northwestern Canada
- Medial Lower Cambrian trilobites from the Mackenzie Mountains, Northwestern Canada
- Ten stratigraphic sections from the Lower Cambrian Sekwi Formation, Mackenzie Mountains, Northwestern Canada