Fengning County [general]: Hauterivian, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Theropoda - Compsognathidae
Xunmenglong yingliangis n. gen., n. sp. Xing et al. 2020
Xing et al. 2020 1 individual
YLSNHM-00005
Reptilia - Theropoda
Paraprotopteryx gracilis n. gen., n. sp. Zheng et al. 2007
Zheng et al. 2007 1 individual
"from the same locality" in the "city of Fengning" as the type of Protopteryx
Protopteryx fengningensis n. gen., n. sp. Zhang and Zhou 2000
1 individual
Reptilia - Theropoda - Hongshanornithidae
Archaeornithura meemannae n. gen., n. sp. Wang et al. 2015
Wang et al. 2015 2 individuals
Holotype. An articulated partial skeleton with feathers (STM7-145), housed at the Tianyu Natural History Museum of Shandong (STM), China (Fig. 1). Paratype. An articulated partial skeleton with feathers (STM7-163; Supplementary Fig. 1).
see common names

Geography
Country:China State/province:Hebei County:Fengning
Coordinates: 41.2° North, 116.7° East (view map)
Paleocoordinates:43.0° North, 118.9° East
Basis of coordinate:based on political unit
Geographic resolution:local area
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Hauterivian 10 m.y. bin:Cretaceous 2
Key time interval:Hauterivian
Age range of interval:132.60000 - 125.77000 m.y. ago
Age estimate:130.7 Ma (Ar/Ar)
Stratigraphy
Formation:Huajiying Member:Sichakou
Stratigraphic resolution:group of beds
Stratigraphy comments: "~125 mya" based on dates of Swisher 2002 (i.e., late Barremian or early Aptian) according to Zheng et al. 2007

'Sichakou sedimentary member’

A weighted mean age of 130.7 Ma was reported using 40Ar/39Ar dating of the K-feldspars samples from the interbedded tuffs about 6m below the Protopteryx-bearing layer7, largely consistent with previous results using the SHRIMP U-Pb method31
Lithology and environment
Primary lithology:tuffaceous siltstone
Includes fossils?Y
Environment:lacustrine indet.
Geology comments: not discussed
Taphonomy
Modes of preservation:body,adpression,soft parts
Size of fossils:macrofossils
Articulated whole bodies:all
Associated major elements:none
Disassociated major elements:none
Disassociated minor elements:none
Collection methods and comments
Collection methods:selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:IVPP
Collection method comments: The two specimens (STM7-145, 7-163) of A. meemannae were acquired by the Tianyu Natural History Museum of Shandong from a fossil dealer. The dealer confirmed that the fossils were collected from the same locality of the holotype of Protopteryx fengningensis (IVPP V11665) in Sichakou basin of Fengning Country, Hebei Province, northeastern China.
Taxonomic list comments:no indication as to whether other taxa are present
Metadata
Also known as:Protopteryx type, Fengning City
Database number:68022
Authorizer:J. Alroy, P. Mannion, M. Carrano Enterer:J. Alroy, J. Tennant, M. Carrano
Modifier:M. Carrano Research group:paleoentomology,vertebrate
Created:2006-12-24 20:05:46 Last modified:2021-11-30 13:51:11
Access level:the public Released:2006-12-24 20:05:46
Creative Commons license:CC BY
Reference information

Primary reference:

19468. F. Zhang and Z. Zhou. 2000. A primitive enantiornithine bird and the origin of feathers. Science 290:1955-1959 [J. Alroy/J. Alroy]

Secondary references:

55248 M. Wang, X. Zheng, J. K. O'Connor, G. T. Lloyd, X. Wang, Y. Wang, X. Shang and Z. Zhou. 2015. The oldest record of Ornithuromorpha from the Early Cretaceous of China. Nature Communications 6(6987) [P. Mannion/J. Tennant/M. Carrano]
78778 L. Xing, T. Miyashita, D. Wang, K. Niu, and P. J. Currie. 2020. A new compsognathid theropod dinosaur from the oldest assemblage of the Jehol Biota in the Lower Cretaceous Huajiying Formation, northeastern China. Cretaceous Research 107:104285 [M. Carrano/M. Carrano]
34920 X. W. Zhang, D. Ren, H. Pang and C.K. Shih. 2009. Late Mesozoic chresmodids with forewing from Inner Mongolia, China (Polyneoptera: Archaeorthoptera). Acta Geologica Sinica 84:38-46 [M. Clapham/M. Clapham]
28708 X. Zheng, Z. Zhang, and L. Hou. 2007. A new enantiornithine bird with four long rectrices from the Early Cretaceous of northern Hebei, China. Acta Geologica Sinica 81(5):703-708 [J. Alroy/J. Alroy]