Futabasaurus is a genus of plesiosaur from the Late Cretaceous of Fukushima, Japan. It was described and named in 2006, and was assigned to the family Elasmosauridae. The genus contains one species, F
Cast of fossils of Futabasaurus suzukii exhibited at the National Museum of Nature and Science
Pre-2006 skeletal mount which is informally labelled as "Wellesisaurus sudzuki" (with a large stone containing crinoids and ammonites in the background)
Marambionectes is an extinct genus of weddellonectian elasmosaurid plesiosaur from the Late Cretaceous López de Bertodano Formation of Antarctica. The genus contains a single species, M. molinai, know