English edit

Etymology edit

Thunnosauria +‎ -n

Noun edit

thunnosaurian (plural thunnosaurians)

  1. Any extinct ichthyosaur of the taxon Thunnosauria.
    • 2019, Hans-Dieter Sues, The Rise of Reptiles: 320 Million Years of Evolution, page 98:
      The best-known early thunnosaurian is Stenopterygius, from the Early Jurassic (Toarcian) of England, France, Germany, Luxembourg, and Switzerland.