Spirorbidae

Distribution:

• Miocene of Spain (1 collection)

• Cretaceous of France (1)

• Triassic of United States (2: New Mexico, Texas)

• Carboniferous of Canada (1: Newfoundland and Labrador), the United Kingdom (1)

• Devonian of Australia (2)

• Silurian of Estonia (1), United States (1: Wisconsin)

Total: 10 collections each including a single occurrence

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