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 |
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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
Measurements
No measurements are available
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Source: c = class, subp = subphylum | |||||
References: Wagner 2023, Carroll 1988 |
Age range: Cenomanian or 100.50000 to 93.90000 Ma
Collections (2 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Cenomanian | Ukraine | Ptychodus marginalis (231904 231906) |