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d772066d386b3d45dc23ac859ecee65e

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Antispirifer Williams & Breger, 1916

Source

Rank

genus

Names

1

species:4867574

Prof. Pap. U. S. geol. Surv. , 89, 114.

Classification

Delthyrididae
- Antispirifer Williams & Breger, 1916
  - Antispirifer haroldi