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Viavenator

Viavenator Temporal range: Santonian; ~86–83 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
	Life restoration of Viavenator exxoni
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Dinosauria
Clade:	Saurischia
Clade:	Theropoda
Family:	†Abelisauridae
Clade:	†Furileusauria
Genus:	†Viavenator; Filippi et al., 2016
Type species
	†Viavenator exxoni Filippi et al., 2016

Extinct genus of dinosaurs

Viavenator (meaning “road hunter”) is a genus of carnivorous abelisaurid theropod dinosaur that lived in the Santonian-aged (Late Cretaceous) Bajo de la Carpa Formation of Argentina. Only a single species is known, V. exxoni, formally described in 2016 by Filippi and colleagues.

Quick facts Scientific classification, Type species …

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Classification

Filippi et al. classified Viavenator to a new clade known as the Furileusauria,^[1] which includes it as well as Carnotaurus. This would mean the former taxon was closer to the latter than Majungasaurus. It would have measured 5.6 metres (18 ft) in length.^[2]

Palaeobiology

Size comparison of Viavenator to a human

Viavenator possessed a brain morphology similar to Aucasaurus, another South American abelisaurid, and had a similar inner ear. Compared to the Madagascan abelisaurid Majungasaurus, Viavenator was more reliant on quick movements of the head and sophisticated gaze stabilization mechanisms. However, both genera had a similar range of hearing according to the examinations and subsequent CT scans of the cranium.^[3]

References

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[1]

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[2]

Grillo, O. N.; Delcourt, R. (2016). “Allometry and body length of abelisauroid theropods: Pycnonemosaurus nevesi is the new king”. Cretaceous Research. 69: 71–89. Bibcode:2017CrRes..69…71G. doi:10.1016/j.cretres.2016.09.001.
[3]

“Neuroanatomy of the abelisaurid theropod Viavenator exxoni”. 23 June 2017.

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