An elasmosaurid Plesiosaur sensu Browni (1993). The characters unique to this taxon are the nine teeth on the premaxillae (see description for discussion on potentia individual variation), and the high and pointed coronoid process. The following features are not unique to this taxon, but can be used to distinguish it from other elasmosaurs (see DISCUSSION): closure of the pineal foramen, single-headed ribs a deep ventral notch in the anterior cervical centra, the presence of the lateral longitudinal ridge in the anterior cervicals only the dorsal end of the ilium fan-shaped, the antcrolatcral process of the pubis, the humerus without the posterior expansion above the ulna, the slender femur that is longer than the humerus, the short epipodials. the three distal tarsals, and a fifth metapodial that is proximally shifted.

'Last swimmer of Pontiex'. The holotype was excavated near the town of Pontiex.