Named By: D. J. Serratos, P. Druckenmiller & R. B. J. Benson - 2017.
Classification: Chordata, Reptilia, Sauropterygia, Plesiosauria, Elasmosauridae.
Species: N. bradti (type).
Size: Estimated between 5.1 and 5.6 meters in length.
Known locations: USA, Montana - Bearpaw Formation.
Time period: Campanian/Maastrichtian of the Cretaceous.
Fossil representation: Skull and most of the Post cranial skeleton.
is a genus of elasmosaurid plesiosaur
that would have hunted in the
Western interior seaway during the late Cretaceous period.
Nakonanectes is noted for having short cervical
vertebrae and an
estimated length of only about five and a half meters at most for the
holotype individual. This is small for an elasmosaurid plesiosaur,
as most others of its kind were substantially longer.
- A new elasmosaurid (Sauropterygia, Plesiosauria) from the Bearpaw Shale (Late Cretaceous, Maastrichtian) of Montana demonstrates multiple evolutionary reductions of neck length within Elasmosauridae. Journal of Vertebrate Paleontology 37(2):e1278608. - D. J. Serratos, P. Druckenmiller & R. B. J. Benson - 2017.