Acanthodia
Distribution:
• Carboniferous of United States (2: Montana, New Mexico collections)
• Devonian of Australia (1), Canada (1: Nunavut)
Total: 4 collections each including a single occurrence
Distribution:
• Carboniferous of United States (2: Montana, New Mexico collections)
• Devonian of Australia (1), Canada (1: Nunavut)
Total: 4 collections each including a single occurrence