Sinornis type locality: Aptian, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Actinopteri - Leptolepidiformes - Leptolepididae
Lycoptera sp. Müller 1847
Reptilia
Sinornis santensis n. gen., n. sp. Sereno and Rao 1992
see common names

Geography
Country:China State/province:Liaoning County:Chaoyang
Coordinates: 41.3° North, 120.0° East (view map)
Paleocoordinates:44.5° North, 120.2° East
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
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: "Valanginian" based on pollen and spore assemblage, but changed to Aptian based on age of other Jiufotang collections reported later. Lamagou Bed = top of 2nd Member
Lithology and environment
Primary lithology:fine lithified "siliciclastic"
Includes fossils?Y
Lithology description: "slabs of fine-grained freshwater lake sediment" The Jiufotang Formation mainly comprises lacustrine sandstones, shales, mudstones, and tuffs interbedded within the sediments (He et. al, 2004).
Environment:lacustrine indet.
Taphonomy
Modes of preservation:body,adpression
Size of fossils:macrofossils
Articulated whole bodies:some
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Collection method comments: Beijing Natural History Museum collection
"discovered by one of the local farmers" according to Hou 2001
Taxonomic list comments:locality given only as "Chaoyoung county" by Sereno and Rao, but actually from Meileyingzi, Chaoyang, Chaoyang City" according to Hou 2001 ("Mesozoic Birds of China")
bird is "associated with abundant fish (Lycoptera), insect, and plant remains" including a "pollen and spore assemblage"
Metadata
Also known as:Meileyingzi; Chaoyang; Shengli Town
Database number:85285
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:M. Uhen Research group:vertebrate
Created:2008-12-09 18:46:30 Last modified:2017-05-03 13:52:46
Access level:the public Released:2008-12-09 18:46:30
Creative Commons license:CC BY
Reference information

Primary reference:
28732. P. C. Sereno and C. Rao. 1992. Early evolution of avian flight and perching: new evidence from the Lower Cretaceous of China. Science 255:845-848 [J. Alroy/J. Alroy]

Secondary references:

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]