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Sphenacanthus costellatus
Taxonomy
Ctenacanthus costellatus was named by Traquair (1884).
It was recombined as Cheiracanthus costellatus by Hay (1902) and Denison (1979); it was recombined as Sphenacanthus costellatus by Woodward (1889) and Maisey (1982).
It was recombined as Cheiracanthus costellatus by Hay (1902) and Denison (1979); it was recombined as Sphenacanthus costellatus by Woodward (1889) and Maisey (1982).
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.
†Sphenacanthus costellatus Traquair 1884
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Diagnosis
No diagnoses are available