• Waucoban of United States (1: Washington collection)

• Cambrian of Argentina (1), Canada (4: British Columbia, Newfoundland and Labrador, Yukon), China (1), Greenland (4), India (1), the Russian Federation (3), United States (7: California, Nevada, New York)

• Ediacaran of India (1)

Total: 23 collections including 30 occurrences