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Pnigeacanthus
Taxonomy
Pnigeacanthus was named by St John and Worthen (1883).
It was synonymized subjectively with Oracanthus by Hay (1902).
It was assigned to Janassidae by Jordan (1963).
It was synonymized subjectively with Oracanthus by Hay (1902).
It was assigned to Janassidae by Jordan (1963).
Synonymy list
| Year | Name and author |
|---|---|
| 1883 | Pnigeacanthus St John and Worthen p. 425 |
| 1963 | Pnigeacanthus Jordan p. 593 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Pnigeacanthus St John and Worthen 1883
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Diagnosis
No diagnoses are available