Acestrus
Extinct genus of ray-finned fishes
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Acestrus is an extinct genus of marine ray-finned fish that lived during the lower Eocene in Europe. It contains one species, A. ornatus from the London Clay, known from a single braincase. It is thought to possibly be closely allied with billfish based on the braincase morphology, although it remains uncertain whether it had the rostrum characteristic of billfishes. Some authorities have suggested blochiid affinities.[1][2][3][4]
| Acestrus Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Division: | Teleostei |
| Order: | Istiophoriformes (?) |
| Genus: | †Acestrus Woodward, 1901 |
| Species: | †A. ornatus |
| Binomial name | |
| †Acestrus ornatus Woodward, 1901 | |
The former species "A. elongatus" Casier, 1966 is now thought to be remains assigned to Duplexdens.[3]
