Conularida
Distribution:
• Silurian of Argentina (3 collections), United States (2: Illinois, Iowa)
• Ordovician of the United Kingdom (9)
Total: 14 collections each including a single occurrence
Distribution:
• Silurian of Argentina (3 collections), United States (2: Illinois, Iowa)
• Ordovician of the United Kingdom (9)
Total: 14 collections each including a single occurrence