Goronyosaurus nigeriensis

Conrad, J. L., 2008, Phylogeny And Systematics Of Squamata (Reptilia) Based On Morphology, Bulletin of the American Museum of Natural History 2008 (310), pp. 1-182 : 129

Goronyosaurus nigeriensis + Plotosaurus bennisoni

(figs. 54F, 55F)

DIAGNOSIS: Goronyosaurus and Plotosaurus form a clade to the exclusion of ‘‘ Mosasaurus ’’ lemonnieri diagnosed by 15(0) absence of a rostrum anterior to the premaxillary teeth, 33(0) maxillary tooth row extending posteriorly beyond the anterior onefourth of the orbit, 65(1) frontals with an anterior maxillary contact, 89(0) contact between the supratemporal arch bones and frontal and parietal unforked, 146(1) posterior opening of the Vidian canal located on the sphenoid-prootic suture, 235(0) absence of true zygosphenes-zygantra, and 276(2) distinct and completely separate deltoid and pectoral crests on the humerus.