| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Ptychodus marginalis
Taxonomy
Ptychodus marginalis was named by Agassiz (1839).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1839 | Ptychodus marginalis Agassiz |
| 1977 | Ptychodus marginalis Herman p. 67 |
| 2023 | Ptychodus marginalis Amadori et al. p. 4 fig. 2C,G |
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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 marginalis Agassiz 1839
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Diagnosis
No diagnoses are available