| Ctenothrissiformes Temporal range: Late Cretaceous,
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| Fossil of Ctenothrissa vexillifer | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| (unranked): | Acanthomorpha |
| Order: | †Ctenothrissiformes Berg 1937 |
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Ctenothrissiformes is an extinct order of prehistoric ray-finned fish.