| Ptomacanthus Temporal range:
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|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Genus: | †Ptomacanthus Miles 1973[1] |
| Species: | †P. anglicus
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| Binomial name | |
| †Ptomacanthus anglicus Miles 1973[1]
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Ptomacanthus (meaning thorny corpse) is an extinct genus of spiny shark,[1] an early relative of living cartilaginous fishes (sharks, rays, and chimaeras).[2]
- ^ a b c Miles, R.S. (1973). "Articulated acanthodian fishes from the Old Red Sandstone of England, with a review of the structure and evolution of the acanthodian shoulder-girdle". Bull. Br. Mus. (Nat. Hist.) Geol.: 111–213.
- ^ Brazeau, M.D. (2009). "The braincase and jaws of a Devonian 'acanthodian' and modern gnathostome origins" (PDF). Nature. 457 (7227): 111–213. Bibcode:2009Natur.457..305B. doi:10.1038/nature07436. hdl:10044/1/17971. PMID 19148098. S2CID 4321057.