Gyrosteus

Gyrosteus
Temporal range: Lower Toarcian Possible Bathonian record
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: †Chondrosteiformes
Family: †Chondrosteidae
Genus: †Gyrosteus
Agassiz, 1843
Type species
†Gyrosteus mirabilis
Agassiz, 1844
Species
  • †"Gyrosteus" subdeltoideus

Gyrosteus is an extinct genus of a large ray-finned fish belonging to the family Chondrosteidae. It comprises the type species, Gyrosteus mirabilis, which lived during the early Toarcian (Late Early Jurassic) in what is now northern Europe. A possible second species, "Gyrosteus" subdeltoideus, is known from otoliths.

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