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Trinacromerum Cragin, 1888

Source

Rank

genus

Names

1

species:4823582

Amer. Geol. , 2, 405.

Classification

Polycotylidae Williston, 1908
- Trinacromerum Cragin, 1888
  - Trinacromerum bentonianum
  - Trinacromerum bonneri