Kundur, Amur region (Cretaceous of Russian Federation)

Where: Amur, Russian Federation (49.1° N, 130.9° E: paleocoordinates 51.4° N, 117.7° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Wodehouseia spinata - Aquilapollenites subtilis pollen zone, Udurchukan Formation (Tsagayan Group), Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• Godefroit et al. (2012): "Udurchukan Formation (Wodehouseia spinata - Aquilapollenites subtilis palynozone), ?Late Maastrichtian, Late Cretaceous"

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial; gray, green, conglomeratic claystone

• "formed as a result of mudstream flows from the heights"
• "grayish green clays with gravel inclusions...The bone beds are mixtites by genesis."

•Godefroit et al. (2012): "The greatest part of the dinosaur material from Kundur, including the fossils described in the present paper, are included within massive, unsorted strata representing the deposits of ancient sediment gravity flows that originated from the uplifted areas at the borders of the Zeya-Bureya Basin. These gravity flows assured the concentration of dinosaur bones and carcasses as well as their quick burial. Such taphonomic conditions allowed the preservation of sub-complete hadrosaurid skeletons unearthed at the Kundur site"

Size classes: macrofossils, mesofossils

Collected by V.A. Nagorny, Y.L. Bolotsky & team in 1990, 1999

Collection methods: bulk, quarrying, mechanical, sieve,

Primary reference: T. A. Tumanova, V. R. Alifanov, and Y. I. Bolotsky. 2003. V Rossii vpervyye obnaruzheny ostatki ankilozavrov [First remains of ankylosaurs found in Russia]. Priroda 2003(3):69-70 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 38134: authorized by Matthew Carrano, entered by Matthew Carrano on 13.04.2004, edited by Patricia Holroyd and Roger Benson

Creative Commons license: CC BY (attribution)

Taxonomic list

 Testudines - Trionychidae
Trionychidae indet.5 Gray 1825 softshell turtle
 Testudines - Lindholmemydidae
Lindholmemydidae indet.5 Chkhikvadze 1970 turtle
Amuremys planicostata2 Riabinin 1930 turtle
 Saurischia -
Arkharavia heterocoelica n. gen. n. sp.1
Arkharavia heterocoelica n. gen. n. sp.1 Alifanov and Bolotsky 2010 sauropod
AEIM no. 2/418, 2/720, 2/419, 2/420, 2/997
 Avetheropoda - Dromaeosauridae
Richardoestesia "sp. 1"6 Currie et al. 1990 coelurosaur
Richardoestesia "sp. 2"6 Currie et al. 1990 coelurosaur
cf. Saurornitholestes sp.6 Sues 1978 coelurosaur
cf. Dromaeosaurus sp.6 Matthew and Brown 1922 coelurosaur
 Avetheropoda - Troodontidae
Troodon sp.6 Leidy 1856 coelurosaur
 Avetheropoda - Tyrannosauridae
cf. Tarbosaurus sp.6, ""Albertosaurus" periculosus" = Tarbosaurus bataar6
cf. Tarbosaurus sp.6 Maleev 1955 tyrannosaurid
""Albertosaurus" periculosus" = Tarbosaurus bataar6 Maleev 1955 tyrannosaurid
 Avetheropoda -
Aublysodon "sp. 1"6 Leidy 1868 coelurosaur
Aublysodon "sp. 2"6 Leidy 1868 coelurosaur
 Ornithischia - Nodosauridae
Nodosauridae indet.5 Marsh 1890 ornithischian
 Neornithischia - Hadrosauridae
Hadrosaurinae indet.6 Lambe 1918 hadrosaurine
Kundurosaurus nagornyi n. gen. n. sp.3 Godefroit et al. 2012 hadrosaurine
AENM 2/921 (holotype), a partial, disarticulated skull; AENM 2/45, 2/46, jugals; AENM 2/ 83, 2/84, 2/86, maxillae; AENM 2/57, 2/58, nasals; AENM 2/ 48, postorbital; AENM 2/19, quadrate; AENM 2/121, 2/928 partial braincases; AEHM 2/846, 2/902, dentaries; AENM 2/ 906, scapula; AENM 2/913, sternal; AENM 2/117, 2/903, 2/ 907, 2/908, humeri; AENM 2/905, ulna; AENM 2/904, radius; AENM 2/922, nearly complete pelvic girdle and associated sacral elements
Olorotitan arharensis n. gen. n. sp.4 Godefroit et al. 2003 lambeosaurine
 Loricata - Paralligatoridae
Shamosuchus sp.5 Mook 1924 crocodilian
 Multituberculata -
Cimolodonta indet.6 multituberculate