Kansaignathus

Kansaignathus (meaning "jaw from Kansai") is a genus of velociraptorine dromaeosaurid from the Late Cretaceous Ialovachsk Formation of Tajikistan. The genus contains a single species, Kansaignathus sogdianus.[1]

Kansaignathus
Temporal range: Santonian
~
Life restoration
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Family: Dromaeosauridae
Clade: Eudromaeosauria
Subfamily: Velociraptorinae
Genus: Kansaignathus
Averianov & Lopatin, 2021
Species:
K. sogdianus
Binomial name
Kansaignathus sogdianus
Averianov & Lopatin, 2021
External image
image icon Right dental bone (PIN holotype, no. 2398/15). The numbers indicate the dental alveoli from front to back.

Discovery and naming

The holotype of Kansaignathus, 2398/15, consists of a right dentary. It was discovered in the Konsoy locality in the north of the Fergana Valley of Tajikistan in the 1960s. The generic name, Kansaignathus, is derived from "Kansai," the Russian name of the location where the holotype specimen was discovered, and the Greek "gnathos," meaning jaw. The specific name, sogdianus, is derived from Sogdiana, an ancient region in Central Asia. It represents the first non-avian dinosaur described from Tajikistan.[1]

Additional remains from the same formation, consisting of sacrum fragments, manual phalanges and a third metatarsal, were referred to Kansaignathus in 2023.[2]

Classification

Kansaignathus was placed as a basal member of the subfamily Velociraptorinae by Averianov & Lopatin in 2021. Their cladogram is shown below:[1][3]

Dromaeosauridae

Mahakala

Halszkaraptorinae

Halszkaraptor

Hulsanpes

Microraptorinae

Unenlagiinae

Bambiraptor

Dakotaraptor

Eudromaeosauria

Saurornitholestinae

Dromaeosaurinae

Velociraptorinae

Deinonychus

Kansaignathus

Acheroraptor

Adasaurus

Velociraptor

Velociraptor osmolskae

Dineobellator

Linheraptor

Tsaagan

 

References

  1. Averianov, A. O.; Lopatin, A. V. (2021). "A New Theropod Dinosaur (Theropoda, Dromaeosauridae) from the Late Cretaceous of Tajikistan". Doklady Earth Sciences. 499 (1): 570–574. doi:10.1134/S1028334X21070047. S2CID 239088573..
  2. Averianov, Alexander O.; Lopatin, Alexey V. (2023-03-08). "New data on Kansaignathus sogdianus, a dromaeosaurid theropod from the Upper Cretaceous of Tajikistan". Cretaceous Research: 105524. doi:10.1016/j.cretres.2023.105524. ISSN 0195-6671.
  3. "Научная работа - Палеонтологический институт им. А.А. Борисяка РАН".


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