Lamadong, Jianchang: Aptian, China
collected by G. Chen

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Avetheropoda - Dromaeosauridae
Microraptor sp. Xu et al. 2000
Li et al. 2014 1 individual
BMNHC PH881
Reptilia - Avetheropoda
Bellulia rectusunguis n. gen., n. sp. Wang et al. 2016
Wang et al. 2016 1 specimen
IVPP V17970
Reptilia - Avetheropoda - Schizoouridae
Mengciusornis dentatus n. gen., n. sp. Wang et al. 2020
Wang et al. 2020 1 specimen
IVPP V26275
Reptilia - Avetheropoda - Bohaiornithidae
Sulcavis geeorum n. gen., n. sp. O'Connor et al. 2013
O'Connor et al. 2013 1 individual
BMNH Ph-000805 (holotype slab skeleton) from 'near Lamadong Village'
Bohaiornis guoi n. gen., n. sp. Hu et al. 2011
1 individual
LPM B00167
Reptilia - Avetheropoda - Pengornithidae
Chiappeavis magnapremaxillo n. gen., n. sp. O'Connor et al. 2016
O'Connor et al. 2016 1 specimen
STM29-11
Reptilia
Ikrandraco avatar n. gen., n. sp. Wang et al. 2014
Wang et al. 2014 1 individual
IVPP V18199
Reptilia - Anurognathidae
Versperopterylus lamadongensis n. gen., n. sp. Lu et al. 2017
Lu et al. 2017 1 specimen
BMNHC-PH-001311
see common names

Geography
Country:China State/province:Liaoning County:Jianchang
Coordinates: 40.7° North, 119.7° East (view map)
Paleocoordinates:43.8° North, 120.0° 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:125.00000 - 113.00000 m.y. ago
Stratigraphy
Geological group:Jehol Formation:Jiufotang
Stratigraphic resolution:bed
Stratigraphy comments: "part of, or laterally equivalent to, the Lower Cretaaceous Yixian Formation, but more data are needed to confirm this" (Hu et al. 2011)

Li et al. (2014) state that "Recent fieldwork confirmed the outcrops of fossil beds exposed in Lamadong Village mainly belong to the Jiufotang Formation (X. L. Wang, personal commun.)".
Lithology and environment
Primary lithology: sandstone
Secondary lithology: mudstone
Lithology description: The Jiufotang Formation mainly comprises lacustrine sandstones, shales, mudstones, and tuffs interbedded within the sediments.
Environment:lacustrine indet.
Taphonomy
Modes of preservation:body,adpression,soft parts
Lagerst�tten type:conservation
Degree of concentration:dispersed
Size of fossils:macrofossils
Preservation of anatomical detail:excellent
Fragmentation:none
Temporal resolution:snapshot
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Collectors:G. Chen
Collection method comments: collected by Mr. Guo Chen
Metadata
Database number:105772
Authorizer:M. Carrano, R. Butler, G. Lloyd, R. Benson Enterer:M. Carrano, R. Butler, G. Lloyd, R. Benson
Modifier:F. Villegas-Garin Research group:vertebrate
Created:2011-02-25 02:52:38 Last modified:2017-04-29 11:20:40
Access level:the public Released:2011-02-25 02:52:38
Creative Commons license:CC BY
Reference information

Primary reference:

35309.ETE D. Hu, L. Li, L. Hou and X. Xu. 2011. A new enantiornithine bird from the Lower Cretaceous of western Liaoning, China. Journal of Vertebrate Paleontology 31(1):154-161 [M. Carrano/M. Carrano]

Secondary references:

62123 H. Y. He, X. L. Wang, Z. H. Zhou, F. Wang, A. Boven, G. H. Shi, and R. X. Zhu. 2004. Timing of the Jiufotang Formation (Jehol Group) in Liaoning, northeastern China, and its implications. Geophysical Research Letters 31(12):1-4 [M. Uhen/F. Villegas-Garin/M. Uhen]
52405 Q. Li, J. A. Clarke, K.-Q. Gao, C.-F. Zhou, Q. Meng, D. Li, L. D'Alba and M. D. Shawkey. 2014. Melanosome evolution indicates a key physiological shift within feathered dinosaurs. Nature 507:350-353 [M. Carrano/M. Carrano]
49836 Z. Li, Z. Zhou, M. Wang and J. A. Clarke. 2014. A new specimen of large-bodied basal enantiornithine Bohaiornis from the Early Cretaceous of China and the inference of feeding ecology in Mesozoic birds. Journal of Paleontology 88(1):99-108 [P. Mannion/P. Mannion]
66065 J.-C. Lu, Q.-J. Meng, B.-P. Wang, DLiu, C.-Z. Shen and Y.-G. Zhang. 2017. Short note on a new anurognathid pterosaur with evidence of perching behaviour from Jianchang of Liaoning Province, China. In D. W. E. Hone, M. P. Witton, D. M. Martill (eds.), Geological Society of London Special Publications 455:95-104 [G. Lloyd/G. Lloyd]
67472 J. K. O'Connor, X.-L. Wang, X.-T. Zheng, H. Hu, and X.-M. Zhang, Z.-H., and Zhou. 2016. An enantiornithine with a fan-shaped tail, and the evolution of the rectricial complex in early birds. Current Biology 26:114-119 [G. Lloyd/G. Lloyd]
44215 J. K. O'Connor, Y. -G. Zhang, L. M. Chiappe, Q. Meng, Q. Li and D. Liu. 2013. A new enantiornithine from the Yixian Formation with the first recognized avian enamel specialization. Journal of Vertebrate Paleontology 33(1):1-12 [R. Benson/R. Benson]
71251 M. Wang, J. K. O'Connor, S. Zhou and Z.-H. Zhou. 2020. New toothed Early Cretaceous ornithuromorph bird reveals intraclade diversity in pattern of tooth loss. Journal of Systematic Palaeontology [G. Lloyd/G. Lloyd]
66138 M. Wang, Z.-H. Zhou, and S. Zhou. 2016. A new basal ornithuromorph bird (Aves: Ornithothoraces) from the Early Cretaceous of China with implication for morphology of early Ornithuromorpha. 176(1):207-223 [G. Lloyd/G. Lloyd]
59181 X. Wang, T. Rodrigues, S. Jiang, X. Cheng, and A. W. A. Kellner. 2014. An Early Cretaceous pterosaur with an unusual mandibular crest from China and a potential novel feeding strategy. Scientific Reports 4(6329) [R. Butler/R. Butler]