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Temporal range: Late Cretaceous
Holotype skull (FHSM VP 321)
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Sauropterygia
Order: Plesiosauria
Family: Pliosauridae
Subfamily: Brachaucheninae
Genus: Megacephalosaurus
Schumacher et al., 2013
Type species
Megacephalosaurus eulerti
Schumacher et al., 2013

Megacephalosaurus is an extinct genus of brachauchenine[1] pliosaurid plesiosaur known from the early Late Cretaceous Carlile Shale (middle Turonian stage) of Russell County, Kansas, United States. It contains a single species, Megacephalosaurus eulerti.[2]

Megacephalosaurus eulerti reconstructed skull in the Rocky Mountain Dinosaur Resource Center in Woodland Park, Colorado

See also[edit]


  1. ^ Benson, R. B. J.; Druckenmiller, P. S. (2013). "Faunal turnover of marine tetrapods during the Jurassic-Cretaceous transition". Biological Reviews. 89: 1–23. doi:10.1111/brv.12038. 
  2. ^ Schumacher, B. A.; Carpenter, K.; Everhart, M. J. (2013). "A new Cretaceous Pliosaurid (Reptilia, Plesiosauria) from the Carlile Shale (middle Turonian) of Russell County, Kansas". Journal of Vertebrate Paleontology. 33 (3): 613–628. doi:10.1080/02724634.2013.722576.