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Ordogeisonoceras Frey, 1995

Source

Rank

genus

Names

1

U S Geological Survey Professional Paper 1066-P: -. [i-iv, P1-P126]

Geisonoceratidae Zhuravleva, 1959
- Ordogeisonoceras Frey, 1995
  - Ordogeisonoceras amplicameratum