Gorynychus

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.[1][2][3]

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

Description
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.[1]

Paleoecology

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.[2]

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References
  1. Kammerer, CF; Masyutin, V. (2018). "A new therocephalian (Gorynychus masyutinae gen. et sp. nov.) from the Permian Kotelnich locality, Kirov Region, Russia". PeerJ. 6: e4933. doi:10.7717/peerj.4933. PMC 5995100. PMID 29900076.
  2. North Carolina Museum of Natural Sciences (June 8, 2018). "'Monstrous' new Russian saber-tooth fossils clarify early evolution of mammal lineage". ScienceDaily. Retrieved June 13, 2018.
  3. Suchkova, J.A.; Golubev, V.K. (2019). "New Permian therocephalian (Therocephalia, Theromorpha) from the Sundyr Assemblage of Eastern Europe". Paleontological Journal (4): 87–92. doi:10.1134/S0031031X19040123.


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