| Pycnosteus | |
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| Pycnosteus tuberculata | |
| Scientific classification | |
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| Genus: | Pycnosteus Preobrazensky, 1911 |
| Binomial name | |
| Pycnosteus tuberculata Preobrazensky, 1911 | |
Pycnosteus is anextinctgenus ofjawless fish from theDevonian. It is thought to have cruised through vegetation, eating small invertebrates which it knocked loose .[1]
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