Viavenator
Viavenator (meaning "road hunter") is a genus of carnivorous abelisaurid theropod dinosaur discovered in Argentina's Bajo de la Carpa Formation. It coexisted with the megaraptoran Tratayenia rosalesi.
Viavenator | |
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Life restoration of Viavenator exxoni | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | Saurischia |
Clade: | Theropoda |
Family: | †Abelisauridae |
Clade: | †Furileusauria |
Genus: | †Viavenator Filippi et al. 2016 |
Type species | |
†Viavenator exxoni Filippi et al. 2016 |
Classification
Filippi classified Viavenator to a new clade known as the Furileusauria,[1] which includes Viavenator as well as Carnotaurus. This would have meant Viavenator was closer to Carnotaurus than Majungasaurus. It would have been 5.6 metres (18 ft) in length.[2]
Palaeobiology
Viavenator possessed a similar brain morphology to Aucasaurus, another South American abelisaurid and had a similar inner ear. Additionally, when compared to the Madagascan abelisaurid Majungasaurus, it was determined that Viavenator was more reliant more on quick movements of the head and sophisticated gaze stabilization mechanisms than the former theropod; however, both genera had a similar range of hearing according to the examinations and subsequent CT scans of the cranium.[3]
References
- Leonardo S. Filippi; Ariel H. Méndez; Rubén D. Juárez Valieri & Alberto C. Garrido (2016). "A new brachyrostran with hypertrophied axial structures reveals an unexpected radiation of latest Cretaceous abelisaurids". Cretaceous Research. 61: 209–219. doi:10.1016/j.cretres.2015.12.018.
- Grillo, O. N.; Delcourt, R. (2016). "Allometry and body length of abelisauroid theropods: Pycnonemosaurus nevesi is the new king". Cretaceous Research. 69: 71–89. doi:10.1016/j.cretres.2016.09.001.
- https://paleonerdish.wordpress.com/2017/06/23/neuroanatomy-of-the-abelisaurid-theropod-viavenator/