Batylykh Formation

The Batylykh Formation is a geological formation in Yakutia, Russia. It is of an uncertain Early Cretaceous age, probably dating between the Berriasian and the Barremian. It is the oldest unit of the 1,500 metres (4,900 ft) thick Sangar Series within the Vilyuy syneclise. The mudstones, sandstones and shales of the formation were deposited in a fluvial to lacustrine environment.

Batylykh Formation
Stratigraphic range: Early Cretaceous
?Berriasian–Barremian
Teete locality with stratigraphic column
TypeGeological formation
Unit ofSangar Series
UnderliesEksenyakh Formation
Lithology
PrimaryClaystone, siltstone, sandstone
Location
Coordinates62.7°N 117.6°E / 62.7; 117.6
Approximate paleocoordinates66.5°N 110.1°E / 66.5; 110.1
RegionYakutia
Country Russia
ExtentVilyuy River Basin
Batylykh Formation (Russia)

Fossil content

The formation is best known for the Teete locality, which has revealed remains of numerous vertebrates, including sauropods,[1] and other dinosaur teeth as well as numerous species of mammal, including Sangarotherium, Khorotherium[2] and tritylodontid Xenocretosuchus[3]. as well as choristodere Khurendukhosaurus.[4]

Other fossils recovered from the formation are:[5]

Mammals
Reptiles
Amphibians
Fish
Insects
  • Crenoptychoptera gronskayae[9]
  • Zhiganka comitans[9]
Bivalves
Gastropods
Flora
  • Dinosaur teeth
  • Kulgeriherpeton ultimum

See also

References
  1. Averianov et al., 2019
  2. Averianov et al., 2018
  3. Lopatin & Agadjanian, 2008
  4. Kolosov et al., 2009
  5. Batylykh Formation at Fossilworks.org
  6. Averianov et al., 2020
  7. Skutschas et al., 2020
  8. Skutschas et al., 2018
  9. Lukashevich, 1995

Bibliography
  • Averianov, Alexander O.; Thomas Martin; Alexey V. Lopatin; Pavel P. Skutschas; Rico Schellhorn; Petr N. Kolosov, and Dmitry D. Vitenko. 2020. A new euharamiyidan mammaliaform from the Lower Cretaceous of Yakutia, Russia. Journal of Vertebrate Paleontology 39. e1762089. doi:10.1080/02724634.2019.1762089
  • Skutschas, P.P.; V.D. Markova; V.V. Kolchanov; A.O. Averianov; T. Martin; R. Schellhorn; P.N. Kolosov; D.V. Grigoriev, and D.D., E. Mobraztsova and I. G. Danilov Vitenko. 2020. Basal turtle material from the Lower Cretaceous of Yakutia (Russia) filling the gap in the Asian record. Cretaceous Research x. 1-14.
  • Averianov, Alexander O.; Pavel P. Skutschas; Rico Schellhorn; Alexey V. Lopatin; Petr N. Kolosov; Veniamin V. Kolchanov; Dmitry D. Vitenko; Dmitry V. Grigoriev, and Thomas Martin. 2019. The northernmost sauropod record in the Northern Hemisphere: Polar sauropods. Lethaia . . doi:10.1111/let.12362
  • Averianov, Alexander; Thomas Martin; Alexey Lopatin; Pavel Skutschas; Rico Schellhorn; Petr Kolosov, and Dmitry Vitenko. 2018. A high-latitude fauna of mid-Mesozoic mammals from Yakutia, Russia. PLoS ONE 13. e0199983. doi:10.1371/journal.pone.0199983 ISSN 1932-6203 PMC 6059412 PMID 30044817
  • Skutschas, P.P.; V.V. Kolchanov; A.O. Averianov; T. Martin; R. Schellhorn; P.N. Kolosov, and D.D. Vitenko. 2018. A new relict stem salamander from the Early Cretaceous of Yakutia, Siberian Russia. Acta Palaeontologica Polonica 63. 519-525.
  • Kolosov, P.N.; G.V. Ivensen; T.E. Mikhailova; S.M. Kurzanov; M.B. Efimov, and Y.M. Gubin. 2009. Taphonomy of the Upper Mesozoic Tetrapod Teete Locality (Yakutia). Paleontological Journal 43. 201-207.
  • Lopatin, Alexey, and A. Agadjanian. 2008. A Tritylodont (Tritylodontidae, Synapsida) from the Mesozoic of Yakutia. Doklady Biological Sciences 419. 107-110.
  • Lukashevich, E.D. 1995. First pupae of the Eoptychopteridae and Ptychopteridae from the Mesozoic of Siberia (Insecta: Diptera). Paleontological Journal 29. 164-171.

Further reading
  • I. P. Tolmachoff. 1904. Neue Funde zur Geologie Sibiriens [New discoveries about the geology of Siberia]. Centralblatt für Mineralogie, Geologie und Paläontologie 1904(1):233-234
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