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Chondrenchelyiformes
Taxonomy
Chondrenchelyiformes was named by Moy-Thomas (1939). It is not extant.
It was assigned to Bradyodonti by Lund (1982); to Chondrichthyes by Sepkoski (2002); to Holocephalimorpha by Nelson (2006); and to Holocephalomorpha by Long (2011) and Nelson et al. (2016).
It was assigned to Bradyodonti by Lund (1982); to Chondrichthyes by Sepkoski (2002); to Holocephalimorpha by Nelson (2006); and to Holocephalomorpha by Long (2011) and Nelson et al. (2016).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1939 | Chondrenchelyiformes Moy-Thomas |
| 1982 | Chondrenchelyiformes Lund p. 939 |
| 2002 | Chondrenchelyiformes Sepkoski |
| 2006 | Chondrenchelyiformes Nelson p. 44 |
| 2011 | Chondrenchelyiformes Long p. 242 |
| 2016 | Chondrenchelyiformes Nelson et al. p. 51 |
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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.
Or. †Chondrenchelyiformes Moy-Thomas 1939
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Fm. †Chondrenchelyidae Berg 1940
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G. †Platyxystrodus Hay 1899
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†Platyxystrodus bellulus St John and Worthen 1875
†Platyxystrodus imitatus St John and Worthen 1875
†Platyxystrodus inconditus Saint John and Worthen 1883
†Platyxystrodus occidentalis St. John 1870
†Platyxystrodus simplex St John and Worthen 1875
†Platyxystrodus striatus M'Coy 1855
†Platyxystrodus verus John and Worthen 1883
Invalid names: Xystrodus Morris and Roberts 1862 [replaced]
Diagnosis
No diagnoses are available