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Plagiostomoceras placidum
Taxonomy
Orthoceras placidum was named by Barrande (1868). It is not extant.
It was recombined as Plagiostomoceras placidum by Kröger (2008).
It was recombined as Plagiostomoceras placidum by Kröger (2008).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1868 | Orthoceras placidum Barrande |
| 2008 | Plagiostomoceras placidum Kröger |
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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.
†Plagiostomoceras placidum Barrande 1868
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Diagnosis
No diagnoses are available