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Synechodus rhaeticus
Taxonomy
Palaeospinax rhaeticus was named by Duffin (1982). Its type specimen is OS 2'1978, a dermal scale (fin spine), and it is a 3D body fossil. Its type locality is Aust Cliff bone bed (Leicester Museum), which is in a Rhaetian coastal conglomerate in the Westbury Formation of the United Kingdom.
It was recombined as Synechodus rhaeticus by Duffin (1998), Cuny et al. (2000) and Cuny and Risnes (2005).
It was recombined as Synechodus rhaeticus by Duffin (1998), Cuny et al. (2000) and Cuny and Risnes (2005).
Synonymy list
| Year | Name and author |
|---|---|
| 1982 | Palaeospinax rhaeticus Duffin pp. 2-3 figs. 1-2 |
| 1998 | Synechodus rhaeticus Duffin p. 250 figs. 3a-h |
| 2000 | Synechodus rhaeticus Cuny et al. p. 173 figs. 5D-E, 6D-G |
| 2005 | Synechodus rhaeticus Cuny and Risnes p. 13 figs. 2e-f |
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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.
†Synechodus rhaeticus Duffin 1982
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. J. Duffin 1982 | A palaeospinacid shark known only by large (over 70mm long) dorsal fin spines. The anterior and lateral faces of the spine are enamelled. The enamel shows growth rings. The enamel coat has a long (over 5mm) proximal extension anteriorly and sweeps back quickly and smoothly to the posterior spine margin. Enamel tubercles may be present in a double row proximal to the lower border of the enamel. |