Eutrichiurides is an extinct genus of prehistoric cutlass fish.

[1][2] Similar and related genera include the extant Aphanopus, Trichiurides and Trichiurus.

[3] These fishes lived in the Eocene period, from 55.8 to 48.6 mya.

[3] Species within this genus include:[4] Eutrichiurides species were very similar in form and build to modern snake mackerels, in that they were long and slender, blade-shaped fishes with elongated jaws possessing fangs and needle-shaped teeth.

This article about a prehistoric ray-finned fish is a stub.