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

Show authors, comments, and common names
Reptilia
 Ornithischia -
Ankylosauria indet., Neoceratopsia indet., Ornithopoda indet.
Ankylosauria indet. ankylosaur
ZIN PH107/3; KK07–09
Neoceratopsia indet. Sereno 1986 ceratopsian
ZIN PH107/4
Ornithopoda indet. ornithopod
scapulae; ZIN PH107/1
 Ornithischia - Spheroolithidae
Spheroolithidae indet.
Spheroolithidae indet. Zhao 1979 ornithopod
ZIN PH107/10, 11, 12; KK19–21
 Ornithischia - Hadrosauridae
Hadrosauridae indet.
Hadrosauridae indet. Cope 1869 hadrosaurid
ZIN PH107/2 ("numerous"); KK05-06
 Theropoda -
Theropoda indet.
Theropoda indet. Marsh 1881 theropod
KK11
 Theropoda - Troodontidae
Troodontidae "indet. sp. 1", Troodontidae "indet. sp. 2"
Troodontidae "indet. sp. 1" Gilmore 1924 maniraptoran
ZIN PH107/6; similar to Urbacodon
Troodontidae "indet. sp. 2" Gilmore 1924 maniraptoran
ZIN PH107/5; similar to Troodon
 Theropoda - Dromaeosauridae
Dromaeosauridae "indet. sp. 1", Dromaeosauridae "indet. sp. 2"
Dromaeosauridae "indet. sp. 1" Colbert and Russell 1969 maniraptoran
ZIN PH107/7; similar to Dromaeosaurus
Dromaeosauridae "indet. sp. 2" Colbert and Russell 1969 maniraptoran
ZIN PH107/8; similar to Saurornitholestes
 Theropoda - Tyrannosauridae
Tyrannosauridae indet.
Tyrannosauridae indet. Osborn 1906 tyrannosaurid
ZIN PH107/9, KK12
  - Prismatoolithidae
Prismatoolithidae indet.
Prismatoolithidae indet. Hirsch 1994 dinosaur
ZIN PH107/13, 14; KK22-23
Actinopteri
 Lepisosteiformes - Lepisosteidae
Lepisosteidae indet.
Lepisosteidae indet. Cuvier 1825 gar
KK10