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Sphenacanthus marshi
Taxonomy
Sphenacanthus marshi was named by Newberry (1873). It is not extant.
Synonymy list
| Year | Name and author |
|---|---|
| 1873 | Sphenacanthus marshi Newberry |
| 1982 | Sphenacanthus marshi Maisey p. 17 fig. 10 |
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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.
†Sphenacanthus marshi Newberry 1873
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Diagnosis
No diagnoses are available