Polysiphonella
Distribution:
• Triassic of Italy (2 collections), Turkey (1)
• Permian of China (3), the Russian Federation (3)
Total: 9 collections each including a single occurrence
Distribution:
• Triassic of Italy (2 collections), Turkey (1)
• Permian of China (3), the Russian Federation (3)
Total: 9 collections each including a single occurrence