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Haplacanthus
Taxonomy
Haplacanthus was named by Agassiz (1845) [Sepkoski's age data: D Emsi-u D Fras Sepkoski's reference number: 455]. It is not extant.
It was assigned to Acanthoessidae by Jordan (1963); to Acanthodii by Denison (1979); and to Acanthodida by Sepkoski (2002).
It was assigned to Acanthoessidae by Jordan (1963); to Acanthodii by Denison (1979); and to Acanthodida by Sepkoski (2002).
Species
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.
G. †Haplacanthus Agassiz 1845
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†Haplacanthus ehrmanensis Gross 1940
†Haplacanthus marginalis Agassiz 1845
†Haplacanthus perseensis Gross 1942
Diagnosis
No diagnoses are available