PBDB Collection

Jiayin (Cretaceous of China)

Also known as Belye Kruchi, Longgushan, Longguchan, White Cliffs

Where: Heilongjiang, China (48.9° N, 130.2° E: paleocoordinates 50.9° N, 116.8° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Yuliangzi Formation (Jiayin Group), Maastrichtian (72.1 - 66.0 Ma)

• "Several bone-bearing horizons have been excavated since the discovery of this site."

• group of beds-level stratigraphic resolution

Environment/lithology: "floodplain"; green, yellow, conglomeratic sandstone and intraclastic, green mudstone

• "The dinosaur-bearing beds...consist of gray-green sandstones, purple mudstones, and a light-colored conglomerate."

•"an ancient fluvial environment with yellow coarse-grained channel deposits and green fine-grained floodplain deposits. Within these floodplain deposits several reddish-purple palaeosol horizons have been observed (Fig. 3D). Some of the green fine-grained deposits also contain a considerable amount of coarser lithic clasts (1 mm-6 cm). It is within these diamict layers that most of the dinosaur bones have been found."

Size classes: macrofossils, mesofossils

Collected by A. Kristofovich, M. Manakin, N. P. Stepanov, V. Arseniev, P. Godefroit in 1902, 1914–1917, 1925, 1975, 1977–

Collection methods: quarrying, mechanical,

• St. Petersburg Geological Committee. Bolotsky et al. (2014) mention that it is possible that F. Schmidt discovered this site in 1866 (as "close to Pashkovo").

Primary reference: Anonymous. 1917. Khronika i lichnyya izvestíya [Chronicle and personal information]. Ezhegodnik Russkogo Paleontologicheskogo Obshchestva 1:101-103 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 37811: authorized by Matthew Carrano, entered by Matthew Carrano on 24.03.2004, edited by Matthew Oreska and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Coniferales -	Cupressinoxylon sp. Cupressinoxylon sp. Göppert 1850
Reptilia
Theropoda - Troodontidae	Troodon sp.⁶ Troodon sp.⁶ Leidy 1856 maniraptoran DMJY V-815 - tooth; "Troodon tooth morphotype"
Theropoda - Tyrannosauridae	"Albertosaurus periculosus n. sp." = Tarbosaurus bataar² "Albertosaurus periculosus n. sp." = Tarbosaurus bataar² Maleev 1955 tyrannosaurid
Ornithischia - Hadrosauridae	Hadrosaurinae indet.⁵, "Trachodon amurense n. sp." = Mandschurosaurus amurensis¹, Charonosaurus jiayinensis n. gen. n. sp.², Saurolophus krystofovici n. sp.⁴ Hadrosaurinae indet.⁵ Lambe 1918 hadrosaurine "Trachodon amurense n. sp." = Mandschurosaurus amurensis¹ Riabinin 1925 hadrosaurine Charonosaurus jiayinensis n. gen. n. sp.² Godefroit et al. 2000 lambeosaurine CUST J-V1251-57 Saurolophus krystofovici n. sp.⁴ Riabinin 1930 hadrosaurid
Ornithischia -	Ankylosauria indet.² Ankylosauria indet.² ankylosaur
Loricata -	Crocodylia indet.² Crocodylia indet.² crocodilian
Testudines - Lindholmemydidae	"Aspideretes planicostatus n. sp." = Amuremys planicostata³ "Aspideretes planicostatus n. sp." = Amuremys planicostata³ Riabinin 1930 turtle CCMGE 12/3413
Testudines -	"Chelonia indet." = Testudines² "Chelonia indet." = Testudines² Batsch 1788 turtle

¹Godefroit et al. 2004; ²Godefroit et al. 2000; ³Riabinin 1931; ⁴Rozhdestvensky 1973; ⁵Wu et al. 2010; ⁶Yu et al. 2022