Ce taxon est considéré comme nomen vanum, species not entered
du taxon valide Plesiosauria
selon la Paleobiology Database.
Voir la fiche de Plesiosauria →
Bibliographie
Description originale
R. Owen. 1850. Descriptions of the fossils of the Chalk Formation. Description of the fossil reptiles of the Chalk Formation. The Geology and Fossils of the Tertiary and Cretaceous Formations of Sussex