Viavenator (road hunter).
Named By: L. S. Filippi, A. H. Méndez, R. D. Juárez Valieri & A. C. Garrido - 2016.
Classification: Chordata, Reptilia, Dinosauria, Saurischia, Theropoda, Abelisauridae.
Species: V. exxoni (type).
Size: Roughly estimated at about 5.5 meters long for the holotype.
Known locations: Argentina - Bajo de la Carpa Formation.
Time period: Santonian of the Cretaceous.
Fossil representation: Partial post cranial skeletal remains including, caudal, dorsal and cervical vertebrae, ribs and shoulder girdle. Fragmentary remains of the upper skull also known.
in 2016 from a single specimen, Viavenator is
another of the
growing number of South American abelisaurid
dinosaurs that are known
to us. At a glance Viavenator does not seem to be
apart from being another abelisaur, however the authors of the paper
describing this dinosaur have identified a combination of features
within the known skeleton that indicate that Viavenator
may actually be
a transitional form, linking earlier abelisaurids of the Cenomanian
and Turonian eras, with the later abelisaurids of the Campanian.
Out of all the South American abelisaurids, Viavenator has been speculated to be more closely related to genera such as Carnotaurus, Abelisaurus, Aucasaurus, Pycnonemosaurus and Quilmesaurus. Like its relatives, Viavenator would have been a predator of other animals, and given the modest size of the holotype individual, a hunter of small to medium dinosaurs.
- A new brachyrostran with hypertrophied axial structures reveals an unexpected radiation of latest Cretaceous abelisaurids. Cretaceous Research 60:209-219. - L. S. Filippi, A. H. Méndez, R. D. Juárez Valieri & A. C. Garrido - 2016.