Thrissops (from , 'hair' and 'look') is an extinct genus of stem-teleost fish from the Jurassic period (Kimmeridgian to Tithonian). Its fossils are known from the Solnhofen Limestone,Solnhofen und seine Fossilien: Thrissops as well as the Kimmeridge Clay.
Thrissops was a fast predatory fish up to long, that fed on other bony fish.Orvar Nybelin, "Versuch einer taxonomischen revision der jurassischen Fischgattung Thrissops Agassiz", Nature (1964) It had a streamlined body with a deeply cleft tail and only very small pelvic fins. Thrissops was one of the smaller members of the order Ichthyodectiformes, which also included larger representatives like Xiphactinus and Saurodon. References