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Stethacanthidae
 | This article's lead section may be too short to adequately summarize the key points. (November 2014) |
| Stethacanthidae | |
|---|---|
| |
| Stethacanthus altonensis | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Order: | †Symmoriiformes |
| Family: | †Stethacanthidae |
| Genera | |
Stethacanthidae is an extinct family of prehistoric sharks.[1] It is estimated to have existed approximately between 380 and 300 million years ago. Members of this family are noted for their peculiar dorsal fin.
- ^ Coates, M., Gess, R., Finarelli, J., Criswell, K., Tietjen, K. 2016. A symmoriiform chondrichthyan braincase and the origin of chimaeroid fishes. Nature. doi: 10.1038/nature20806
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