Beishan Quarry, Boluochi: Aptian, China
collected by Z. Zhou 1990

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Cathayornithiformes - Cathayornithidae
Longchengornis sanyanensis n. gen., n. sp. Hou 1997
Hou 1997 1 individual
IVPP 10530 (holotype)
Reptilia
Cathayornis caudatus n. sp. Hou 1997
Hou 1997 3 individuals
recombined as Houornis caudatus
IVPP V10917(holotype), V10533, V10904
Reptilia - Longipterygidae
Boluochia zhengi n. gen., n. sp. Zhou 1995
Zhou 1995 1 individual
IVPP V9770
Reptilia
Cathayornis yandica n. gen., n. sp. Zhou et al. 1992
30 specimens
Hou (1997) states over 30 avian specimens from Boluochi, most of which belong to Cathayornis (pp. 2 and 68 of translation)
Largirostrornis sexdentornis n. gen., n. sp. Hou 1997
Hou 1997 1 individual
synonym of Cathayornis yandica
IVPP 10531 (holotype)
Reptilia - Hongshanornithidae
Songlingornis linghensis n. gen., n. sp. Hou 1997
Hou 1997 1 individual
IVPP V10913 (holotype) (partial postcranial skeleton)
Reptilia
Chaoyangia beishanensis n. gen., n. sp. Hou and Zhang 1993
Hou and Zhang 1993 1 individual
IVPP V9934
see common names

Geography
Country:China State/province:Liaoning County:Chaoyang
Coordinates: 41.4° North, 120.0° East (view map)
Paleocoordinates:44.6° North, 120.1° East
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Aptian 10 m.y. bin:Cretaceous 3
Key time interval:Aptian
Age range of interval:121.40000 - 113.00000 m.y. ago
Stratigraphy
Geological group:Jehol Formation:Jiufotang Member:2
Stratigraphic resolution:bed
Stratigraphy comments: "Nearly all the specimens from this locality (Bolouchi) were collected from a layer... about 60 cm" (the exception is Eocathayornis walkeri). Xidagou Bed = 2nd Member of Fm.
Lithology and environment
Primary lithology:gray,blue mudstone
Includes fossils?Y
Lithology description: "bluish-grey mudstone"
Environment:lacustrine indet.
Taphonomy
Modes of preservation:body,mold/impression,adpression
Degree of concentration:dispersed
Size of fossils:macrofossils
Preservation of anatomical detail:good
Articulated whole bodies:all
Fragmentation:occasional
Temporal resolution:snapshot
Spatial resolution:parautochthonous
Collection methods and comments
Collection excludes:all macrofossils
Collection methods:salvage,selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:IVPP
Collectors:Z. Zhou Collection dates:September 1990
Collection method comments: Chaoyangia specimen from spoils pile of quarry
Taxonomic list comments:Fish, invertebrates and plants reported by not described by Hou (1997)
Metadata
Also known as:Chaoyang
Database number:79517
Authorizer:M. Carrano, R. Benson Enterer:M. Carrano, R. Benson
Modifier:J. Tennant Research group:vertebrate
Created:2008-03-11 11:33:47 Last modified:2015-01-20 06:55:07
Access level:the public Released:2008-03-11 11:33:47
Creative Commons license:CC BY
Reference information

Primary reference:

38272. Z.-h. Zhou, F. Jin, and J.-y. Zhang. 1992. [Preliminary report on a Mesozoic bird from Liaoning, China]. Kexue Tongbao 1992(5):435-437 [M. Carrano/M. Carrano]

Secondary references:

41010 L. Hou and J. Zhang. 1993. [A new fossil bird from Lower Cretaceous of Liaoning]. Vertebrata PalAsiatica 31(3):217-224 [M. Carrano/M. Carrano]
37441 L. H. Hou. 1997. Mesozoic Birds of China [R. Benson/R. Benson/M. Uhen]
54093 M. Wang and D. Liu. 2015. Taxonomical reappraisal of Cathayornithidae (Aves: Enantiornithes). Journal of Systematic Palaeontology [P. Mannion/J. Tennant]
30728ETE L. Zhang, Y. Yang, L. Zhang, S. Guo, W. Wang and S. Zheng. 2007. Precious fossil-bearing beds of the Lower Cretaceous Jiufotang Formation in western Liaoning Province, China. Acta Geologica Sinica 81(3):357-364 [M. Carrano/M. Carrano]
26678ETE Z. Zhou. 1995. Discovery of a new enantiornithine bird from the Early Cretaceous of Liaoning, China. Vertebrata PalAsiatica 33(2):99-113 [M. Carrano/M. Carrano]
38273 Z.-h. Zhou, F. Jin, and J.-y. Zhang. 1992. Preliminary report on a Mesozoic bird from Liaoning, China. Chinese Science Bulletin 37(16):1365-1368 [M. Carrano/M. Carrano]