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Arctacanthus
Taxonomy
Arctacanthus was named by Nielsen (1932) [Sepkoski's age data: P Guad-u Sepkoski's reference number: 2]. Its type is Arctacanthus uncinatus.
It was assigned to Ctenacanthoidea by Zangerl (1981); to Ctenacanthida by Sepkoski (2002); to Hybodontoidea by Yamagishi (2004); and to Chimaeriformes by Li et al. (2022).
It was assigned to Ctenacanthoidea by Zangerl (1981); to Ctenacanthida by Sepkoski (2002); to Hybodontoidea by Yamagishi (2004); and to Chimaeriformes by Li et al. (2022).
Species
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.
G. †Arctacanthus Nielsen 1932
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†Arctacanthus exiguus Yamagishi 2004
†Arctacanthus multisectus Branson 1933
†Arctacanthus phosphoriensis Branson 1916
†Arctacanthus spitzbergensis Hulke 1873
†Arctacanthus uncinatus Nielsen 1932
†Arctacanthus wyomingensis Branson 1934
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Invalid names: Dolophonodus uncinatus Branson 1933 [replaced]
Invalid names: Ancistriodus Branson 1933 [synonym], Dolophonodus Branson 1933 [synonym], Hamatus Branson 1930 [synonym]
Diagnosis
No diagnoses are available