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Stethacanthus is an extinct genus of shark-like cartilaginous fish which lived from the Late Devonian to Late Carboniferous epoch, dying out around 298.9 million years ago. Fossils have been found in Australia, Asia, Europe and North America.
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complex fin spine-brush cartilage denticles teeth pelvic sharks also spine classification calcified stethacanthids stethacanthidae first large plate globular two girdles
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Stethacanthus | is a | extinct genus of shark-like cartilaginous fish which lived from the Late Devonian to Late Carboniferous epoch | 0.90 | text |
| Stethacanthus | related to Caudal fin | There | 0.60 | section |
| Stethacanthus | related to Caudal fin | The | 0.60 | section |
| Stethacanthus | related to Classification | The | 0.60 | section |
| Stethacanthus | related to Classification | It | 0.60 | section |
| Stethacanthus | related to Classification | If | 0.60 | section |
| Stethacanthus | related to Classification | Another | 0.60 | section |
| Stethacanthus | related to Classification | Following | 0.60 | section |
| Stethacanthus | related to Classification | Taxonomic | 0.60 | section |
| Stethacanthus | related to Classification | Chondrichthyes | 0.60 | section |
| Stethacanthus | related to Classification | Elasmobranchii | 0.60 | section |
| Stethacanthus | related to Classification | Holocephali | 0.60 | section |
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