Xenocretosuchus

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

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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 (excepting the perhaps also not-mammalian[4][5] haramiyidan Avashishta[6][7]), 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 [1]
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  6. S. Anantharaman, G. P. Wilson, D. C. Das Sarma and W. A. Clemens. 2006. A possible Late Cretaceous "haramiyidan" from India. Journal of Vertebrate Paleontology 26(2):488-490
  7. Ashok Sahni, New evidence for palaeogeographic intercontinental Gondwana relationships based on Late Cretaceous-Earliest Palaeocene coastal faunas from peninsular India, Washington DC American Geophysical Union Geophysical Monograph Series 01/1987; 41:207-218. DOI: 10.1029/GM041p0207

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