Fig. 2. One of the potential problems of a long neck in plesiosaurs, as envisaged by Henry de la Beche (painted in 1830) in Duria Antiquior. The large ichthyosaur (now Temnodontosaurus platydon) (D), bites the neck of the plesiosaur Plesiosaurus dolichodeirus (C), a common weak point for predatory attacks. Notice also the second plesiosaur (A) swimming within the water column, which together with the third (B, neck and head only shown), which are both attacking prey above the air-water interface (biting the tail of a crocodile and catching a flying pterosaur, respectively). Image courtesy and copyright of the National Museum of Wales (UK).