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Spyroceras bilineatum
Taxonomy
Orthoceras bilineatum was named by Hall (1847).
It was recombined as Spyroceras bilineatum by Ruedemann (1906).
It was recombined as Spyroceras bilineatum by Ruedemann (1906).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1906 | Spyroceras bilineatum Ruedemann |
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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.
†Spyroceras bilineatum Hall 1847
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Diagnosis
No diagnoses are available