Badaohao coal mine (Cretaceous to of China)

Where: Liaoning, China (41.8° N, 122.0° E: paleocoordinates 46.3° N, 119.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Shahai Formation, Aptian to Aptian (125.0 - 100.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; lithified, gray mudstone and lithified conglomerate

• Lower part: transition of fluvial to lacustrine deposits
• Lower part: Alteration of gray, gray-white, gray-dark sandy mudstone and mudstone with tuff. Interbedded are 4 coal layers. Upper part: gray, gray-white conglomerate with some small layers of coal.

Size classes: macrofossils, mesofossils, microfossils

Primary reference: K. Xu, Y. Li, R. Li and R. Wang. 1998. Discovery of the Dinosaur fossil in Heishan, Liaoning and its stratigraphical significance. Journal of stratigraphy (=Dicengxue-zazhi) 22(3):227-231 [J. Alroy/S. Kuemmell/S. Kuemmell]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 36971: authorized by John Alroy, entered by Susanna Kümmell on 20.02.2004, edited by Matthew Carrano and Roger Benson

Creative Commons license: CC BY (attribution)

Taxonomic list

 Podocopida - Cyprididae
Cypridea sp. Bosquet 1852 ostracod
 Cardiida - Sphaeriidae
Sphaerium selenginense fingernail clam
Sphaerium jeholense fingernail clam
 Architaenioglossa - Viviparidae
Campeloma sp. Rafinesque 1819 snail
 Saurischia -
cf. Euhelopus sp.1 Romer 1956 sauropod
IVPP V16744.1-2
 Avetheropoda -
cf. Incisivosaurus sp.1 Xu et al. 2002 coelurosaur
IVPP V16742.1
 Avetheropoda - Dromaeosauridae
Dromaeosauridae indet.1 Colbert and Russell 1969 coelurosaur
IVPP V16743.1-3
 Neornithischia -
Neoceratopsia indet.1 Sereno 1986 ornithischian
IVPP V16748.1-11
Iguanodontoidea indet.1 Hay 1902 bird foot dinosaur
IVPP V16747.1-3
 Eutriconodonta - Triconodontidae
Meiconodon lii4 Kusuhashi et al. 2009 mammal
fragment of right lower jaw with four molariforms (IVPP V14512; Figs. 4 and 5), and fragment of left lower jaw with two molariforms (IVPP V14513)
 Theriiformes - Spalacotheriidae
Heishanlestes changi n. gen. n. sp.2
Heishanlestes changi n. gen. n. sp.2 Hu et al. 2005 mammal
IVPP V 7480, holotype right dentary; IVPP V 7481, anterior part of a left dentary containing an erupting canine, p1–4, m1; IVPP V 7482, anterior part of a left dentary containing p4, m1, and alveolus for p3
 Multituberculata -
Sinobaatar fuxinensis5 Kusuhashi et al. 2009 multituberculate
fragmentary right maxilla with P1-P3 (IVPP V14507)
 Multituberculata - Eobaataridae
Eobaataridae indet.5 Kielan-Jaworowska et al. 1987 multituberculate
An isolated right upper premolar (probably P1 or P2; IVPP V14506
Heishanobaatar triangulus n. gen. n. sp.3 Kusuhashi et al. 2010 multituberculate
IVPP V14493, holotype partial left dentary
 Multituberculata - Albionbaataridae
Kielanobaatar badaohaoensis n. gen. n. sp.3 Kusuhashi et al. 2010 multituberculate
IVPP V14504, holotype partial left maxilla
 Czekanowskiales -
 Schizaeales - Schizaeaceae
  - Sphenopteridae
Sphenopteris sp. Sternberg 1825