Species: rex KNIGHT, 1898
Etymology:
Holotype: UW 4602
Locality: Wind River Basin, Natrona County, Wyoming.
Horizon: Upper Redwater Shale Member, Sundance Formation.
Biostratigraphy:
Age: Late Oxfordian Stage, Lower Malm Epoch, Late Jurassic.
Material: Cervical, dorsal and caudal vertebrae, humerus, ulna, radius, phalanges, ribs and greater portion of the pectoral girdle.
New material from type locality, WHAL, ROSS & MASSARE, 2007: Vertebral
centrum, matrix filled neural arch, possible limb girdle element, adn epipodial
element.
Note: Paleopathology, 2 humeri shows avascular necrosis. (ROTHSCHILDS & STORRS,
2003)
Note: WHAL, ROSS & MASSARE, 2007 have found possible gut contents consisting of coleoid (belemnite) tentacle hooklests and jaw elements.