Brachaucheninae

The subfamily Brachaucheninae, or family Brachauchenidae, has been proposed to include derived thalassophonean pliosaurs which have very short necks and lack nutritive foramina on the vertebrae. The stratigraphic range of the subfamily is restricted to the Cretaceous Period. 

Characteristics

Lack of nutritive foramina on vertebrae

Brachauchenid genera