Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Family: Mosasauridae
Tribe: Globidensini
Genus: Harranasaurus
Kaddumi, 2009
Type species
Harranasaurus khuludae
Kaddumi, 2009

Harranasaurus is an extinct genus of globidensine mosasaur from the Late Cretaceous (66 Ma) of Jordan. The type species, Harranasaurus khuludae, is based solely on a single mandible of unknown origin.

Harranasaurus mandible

Holotype mandible of H. khuludae


All that is known of this reptile is a partial jaw with four teeth . The morphology of the teeth, however, is quite different from that of the other mosasaurs: the first anterior tooth was unusually small and pointed, while the posterior teeth were gradually more rounded and rounded. The posterior teeth were provided with uniform enamel , without grooves, with the convex external surfaces and the more flattened internal ones. In general, the jaw and teeth vaguely resemble those of Carinodens , another mosasaur with particular teeth. The size of the jaw suggests a length of about two and a half meters; Harranasaurus was therefore one of the smallest mosasaurs. Like all mosasaurs, Harranasaurus had to have an elongated body, legs turned into fins and a long tail and flattened laterally.


Harranasaurus was first described in 2009; the jaw was found in the Muwaqqar formation , in the area of Harrana in Jordan, which has returned the fossils of numerous other mosasaurs (including Carinodens , Prognathodon and Tenerasaurus ). Harranasaurus is considered a representative of globidensin, a particular group of mosasaurs with pointed, rounded and pointed teeth.


This mosasaur probably swam in relatively deep ocean waters; the slender jaw with sharp front teeth suggests that Harranasaurus could prey on many types of soft-bodied animals. The posterior teeth, however, would seem suitable to crush and cut prey. In any case, Harranasaurus would seem to have been able to smash the shells of prey like the arthropods . In contrast, other globidensin such as Globidens and Carinodens would seem more adapted to shatter hard shell prey.


  • Kaddumi, H. 2009. A new durophagous mosasaur (Squamata: Mosasauridae) from the Maastrichtian Muwaqqar Chalk Marl Formation of the Harrana

Fauna. Fossils of the Harrana fauna and the adjacent areas: 36-48.