Jianshangou: Berriasian - Barremian, China

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Testudines - Sinemydidae
Ordosemys liaoxiensis (Ji 1995)
Tong et al. 2004
Reptilia - Avetheropoda - Confuciusornithidae
Changchengornis hengdaoziensis n. gen., n. sp. Ji et al. 1999
Reptilia - Avetheropoda
Euenantiornithes indet. Chiappe 2002
Chiappe et al. 2007
see common names

Country:China State/province:Liaoning County:Beipiao
Coordinates: 41.6° North, 120.8° East (view map)
Paleocoordinates:43.3° North, 123.2° East
Basis of coordinate:estimated from map
Geographic resolution:small collection
Period:Cretaceous Epoch:Early/Lower Cretaceous
Key time interval:Berriasian - Barremian
Age range of interval:145.00000 - 125.00000 m.y. ago
Geological group:Jehol Formation:Chaomidianzi Member:Hengdaozi
Stratigraphic resolution:group of beds
Stratigraphy comments: assigned by Chiappe et al. (2007) without discussion to the lower part of Yixian Formation, but within the Hengdaozi Member of the Chaomidianzi Formation, "formerly regarded as the lower part of the Yixian Formation," according to Ji et al. (1999)
Lithology and environment
Primary lithology:tuffaceous,gray siltstone
Lithology description: the Hengdaozi Member consists of "lacustrine grayish-yellow and grayish-green tuffaceous sandstones, siltstones, and silty mudstones" (Ji et al. 1999)
Environment:lacustrine indet.
Modes of preservation:body,adpression,soft parts
Size of fossils:macrofossils
Preservation of anatomical detail:excellent
Articulated whole bodies:some
Spatial resolution:parautochthonous
Collection methods and comments
Collection excludes:all macrofossils
Collection methods:selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Collection method comments: specimens are in the National Geological Museum of China (GMV)
Taxonomic list comments:Mammals, reptiles, amphibians and fish mentioned by not described by Hou (1997)
Also known as:Beipiao
Database number:79657
Authorizer:M. Carrano, J. Alroy, R. Benson Enterer:M. Carrano, J. Alroy, R. Benson
Modifier:R. Benson Research group:vertebrate
Created:2008-03-17 11:10:11 Last modified:2011-09-05 06:36:07
Access level:the public Released:2008-03-17 11:10:11
Creative Commons license:CC BY
Reference information

Primary reference:

28335. Q. Ji, L. M. Chiappe, and S.-H. Ji. 1999. A new late Mesozoic confuciusornithid bird from China. Journal of Vertebrate Paleontology 19(1):1-7 [J. Alroy/J. Alroy]

Secondary references:

26762ETE L. M. Chiappe, S. Ji, and Q. Ji. 2007. Juvenile birds from the Early Cretaceous of China: implications for enantiornithine phylogeny. American Museum Novitates 3594:1-46 [M. Carrano/M. Carrano]
37441 L. H. Hou. 1997. Mesozoic Birds of China [R. Benson/R. Benson/M. Uhen]
37808 H. Tong, S. -A. Ji, and Q. Ji. 2004. Ordosemys (Testudines: Cryptodira) from the Yixian Formation of Liaoning Province, Northeastern China: New Specimens and Systematic Revision. American Museum Novitates 3438:1-20 [R. Benson/R. Benson]