A mosasaurid skull, 6 cervicals, the anterior two dorsals and a single posterior dorsal vertebra were found in Oron, Negev Desert, Israel, in latest Campanian deposits. The skull is dorsoventrally compressed and somewhat distorted, but otherwise in good condition, although sutures are often indistinct, in part due to weathering and in part due to the great size and presumable old age of the specimen. At an overall length of 1,422 mm it is one of the largest skulls ever discovered. The skull bears resemblance to those of advanced mosasaurines, in particular the type species of Prognathodon, P. solvayi, but differs from all previously known mosasaurids in having a frontal distinctly wider than long. Cladistic analysis on cranial and mandibular characters of 33 ingroup taxa were performed. A Nelsen consensus tree (1:225, ci:44 ri:76) based on 3 equally parsimonious trees placed this new specimen as the sister taxon to P. solvayi, with the American species of Prognathodon forming successive outgroups to these two. The present specimen extends the size range of known globidensine mosasaurines by around a factor two.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.