Kakanaut River (Cretaceous of Russian Federation)

Where: Chukot, Russian Federation (62.9° N, 177.1° E: paleocoordinates 75.8° N, 179.1° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Kakanaut Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: lacustrine - small; lenticular, fine-grained, tuffaceous siliciclastic sediments

• low-energy freshwater environment
• a fine-grained lens with an abundance of tuff materials

Size class: mesofossils

Collected by Godefroit & crew in 2007

Collection methods: bulk, sieve,

Primary reference: P. Godefroit, L. Golovneva, S. Shchepetov, G. Garcia, and P. Alekseev. 2009. The last polar dinosaurs: high diversity of latest Cretaceous arctic dinosaurs in Russia. Naturwissenschaften 96(4):495-501 [M. Carrano/M. Carrano/P. Mannion]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 86529: authorized by Matthew Carrano, entered by Matthew Carrano on 06.02.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
  - Prismatoolithidae
Prismatoolithidae indet. Hirsch 1994 dinosaur
ZIN PH107/13, 14
 Avetheropoda - Dromaeosauridae
Dromaeosauridae "indet. sp. 1" Colbert and Russell 1969 coelurosaur
ZIN PH107/7; similar to Dromaeosaurus
Dromaeosauridae "indet. sp. 2" Colbert and Russell 1969 coelurosaur
ZIN PH107/8; similar to Saurornitholestes
 Avetheropoda - Troodontidae
Troodontidae "indet. sp. 1" Gilmore 1924 coelurosaur
ZIN PH107/6; similar to Urbacodon
Troodontidae "indet. sp. 2" Gilmore 1924 coelurosaur
ZIN PH107/5; similar to Troodon
 Avetheropoda - Tyrannosauridae
Tyrannosauridae indet. Osborn 1906 tyrannosaurid
ZIN PH107/9
 Ornithischia -
Ankylosauria indet. ornithischian
ZIN PH107/3
 Neornithischia -
Neoceratopsia indet. Sereno 1986 ornithischian
ZIN PH107/4
Ornithopoda indet. bird foot dinosaur
scapulae; ZIN PH107/1
 Neornithischia - Spheroolithidae
Spheroolithidae indet. Zhao 1979 bird foot dinosaur
ZIN PH107/10, 11, 12
 Neornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
ZIN PH107/2 ("numerous")