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Cladoselachii (disused)
Taxonomy
Cladoselachii was named by Dean (1894).
It was reranked as the superorder Cladoselachii by Goto et al. (1988).
It was assigned to Pleuropterygii by Dean (1894); and to Elasmobranchii by Thurmond and Jones (1981) and Goto et al. (1988).
It was reranked as the superorder Cladoselachii by Goto et al. (1988).
It was assigned to Pleuropterygii by Dean (1894); and to Elasmobranchii by Thurmond and Jones (1981) and Goto et al. (1988).
Synonymy list
| Year | Name and author |
|---|---|
| 1894 | Cladoselachii Dean |
| 1981 | Cladoselachii Thurmond and Jones p. 36 |
| 1988 | Cladoselachii Goto et al. p. 292 |
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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.
Superor. †Cladoselachii Dean 1894
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B. Dean 1894 | Membrane bones together with neural and haemal spines lacking. Suspensorium probably short and down-turned. In paired fins concrescence of anterior elements giving rise to specialization of radiaIia, and tending to rotate entad the fused basalia; the anterior fin region therefore becoming the more modified, tending to mask its structural characters: in pectoral the specialization of anterior radials producing a bom- like fin margin; in ventral the foremost basalia as yet unfused: the fins’ body angle, anterior and posterior (horizontal), rounded by dermal investiture, the remnant perhaps of the continuous lateral fold. Circum-orbital ring of many dcrm plates. |