Temporal range: Mid Permian
Holotype skull of G. masyutinae
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Clade: Therapsida
Clade: Therocephalia
Genus: Gorynychus
Kammerer & Masyutin, 2018
Type species
Gorynychus masyutinae
Kammerer & Masyutin, 2018
Other species
  • G. sundyrensis Suchkova & Gobulev, 2019

Gorynychus is a genus of therocephalian from the mid-Permian from Kotelnich, Russia. The genus contains two species, G. masyutinae and G. sundyrensis. It was named after the three-headed dragon Zmey Gorynych (Змей Горыныч) from Russian mythology.


Restoration of the two species

G. masyutinae, only known from its holotype, was wolf-sized and appears to have represented the largest predator in the Kotelnich fauna. Like many theriodonts, it had strongly developed and prominent canine teeth.


The discovery of such a large therocephalian as the apex predator of its environment coupled with the discovery of a smaller gorgonopsid, the smaller and nocturnal Nochnitsa, in the same formation indicates that a faunal turnover was occurring at the time, with gorgonopsians taking over the therocephalians' role as the dominant predators in their environment.

This page was last updated at 2024-01-08 04:25 UTC. Update now. View original page.

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