Xenocretosuchus

Xenocretosuchus
Temporal range: Aptian, 136.4–125.45Ma
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Order: Therapsida
Family: Tritylodontidae?
Genus: Xenocretosuchus
Type species
Xenocretosuchus sibiricus
Tatarinov & Matchenko, 1999
Species
  • X. sibiricus (type species) Tatarinov & Matchenko, 1999
  • X. kolossovi Lopatin & Agadjanian, 2008

Xenocretosuchus is a genus of probable tritylodont therapsids from the Aptian (Early Cretaceous) of Siberia, in the Russian Federation.[1] The type species, X. sibiricus, is known only from dental elements,[2] as is X. kolossovi, described in 2008.[3]

The placement of this animal is controversial,[2] but if it is a tritylodont, then it is the latest known non-mammalian synapsid, extending their range to the Early Cretaceous.

References

  1. Fossilworks. "Xenocretosuchus." Retrieved from
  2. 2.0 2.1 Palaeos. "Cynodontia: Tritylodontidae." Retrieved from
  3. Lopatin & Agadjanian, 2008. "A Tritylodont (Tritylodontidae, Synapsida) from the Mesozoic of Yakutia." Retrieved from