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Sigmocheilus flabellifer
Taxonomy
Dikelocephalus flabellifer was named by Hall and Whitfield (1877). Its type specimen is USNM 24569, a pygidium, and it is a 3D body fossil.
It was recombined as Sigmocheilus flabellifer by Palmer (1965).
It was recombined as Sigmocheilus flabellifer by Palmer (1965).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
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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.
†Sigmocheilus flabellifer Hall and Whitfield 1877
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Invalid names: Sigmocheilus serratus Palmer 1960 [synonym]
Diagnosis
No diagnoses are available