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175d2a072a5707991d06398d884b2fe5

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Pnigeacanthus St. John & Worthen, 1875

Source

Rank

genus

Names

1

species:4815166

Geol. Surv. Illinois, 6, 480.

Classification

Chordata
- Pnigeacanthus St. John & Worthen, 1875