Sauropterygia–> Eosauropterygia–> Eusauropterygia–> Pistosauroidea–> Plesiosauria–> Pliosauroidea–> Brachauchenidae

The family <Brachauchenidaehas been proposed to include derived pliosaurs which have very short necks and lack nutritive foramina on the vertebrae. Known Brachaucheniids are restricted to the Cretaceous and genera include Brachauchenius and Kronosaurus. Characteristics:

  • Lack of nutritive foramina on vertebrae

Brachaucheniid genera

  • Brachauchenius
  • Kronosaurus