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Ptychodus altior
Taxonomy
Ptychodus altior was named by Agassiz (1835).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1835 | Ptychodus altior Agassiz p. 54 |
| 1838 | Ptychodus altior Agassiz figs. Pl 25b, figs 9,10 |
| 1839 | Ptychodus altior Agassiz p. 156 |
| 1873 | Ptychodus altior Leidy p. 300 |
| 2023 | Ptychodus altior Amadori et al. p. 4 fig. 2A |
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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.
†Ptychodus altior Agassiz 1835
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Diagnosis
No diagnoses are available