Quarry 1, Lao Chang Qing: Bajocian, China
collected by W. Tao 1985, 1995

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Testudines - Xinjiangchelyidae
Testudines indet. Batsch 1788
5 specimens
"4 turtles"
Tong et al. 2015
LFDVSM zjl0381-p162, a shell with ar- ticulated carapace and plastron, lacking right and posterior peripheral portions; plastron with anterior lobe and right bridge damaged. LFDVSM zlj043, left portion of a shell with articulated carapace and plastron; LFDVSM zlj0106, an almost complete shell with articulated carapace and plas- tron; LFDVSM zlj0414, right posterior portion of a shell, with articulated carapace and plastron; LFDVSM zlj0255-p36, a complete carapace preserved in situ and pre-sented in dorsal view [entered as Xinjianchelys oshanensis]
Reptilia
Fang et al. 2000 1 individual
LFGT LCD9701-1 - holotype (previously considered a referred specimen of Chuanjiesaurus anaensis) - almost complete postcranial skeleton, comprising 11 cervical, 6 posterior dorsal, 4 sacral and 25 caudal vertebrae and chevrons, some dorsal ribs, left humerus, ulna, radius and metacarpals, left ilium, left and right fused pubes, and left femur
    = Analong chuanjieensis n. gen., n. sp. Ren et al. 2021
Ren et al. 2021
1 individual
Lfch1001 - holotype (series of caudal vertebrae, both scapulocoracoids and humeri, a left ulna and radius, both ischia, right femur, tibia, fibula and astragalus)
    = Chuanjiesaurus anaensis n. gen., n. sp. Fang et al. 2000
Fang et al. 2000
Reptilia - Metriacanthosauridae
1 individual
LDM-LCA 9701-IV
    = Shidaisaurus jinae n. gen., n. sp. Wu et al. 2009
Wu et al. 2009
unclassified
Xing et al. 2016 4 specimens
ZLJ0121-T1 to T4
see common names

Geography
Country:China State/province:Yunnan County:Lufeng
Coordinates: 25.0° North, 102.1° East (view map)
Paleocoordinates:25.6° North, 122.1° East (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period: Jurassic Epoch: Middle Jurassic
Stage: Bajocian 10 m.y. bin: Jurassic 4
Key time interval: Bajocian
Age range of interval: 170.9 - 168.2 m.y. ago
Stratigraphy
Formation:Chuanjie
Stratigraphic resolution:bed
Stratigraphy comments: From the base of the Chuanjie Formation, which was regarded to be Middle Jurassic (Bajocian), according to the magnetostratigraphic study of Huang et al. (2015).

Originally assigned to Lufeng but ascribed to Upper Jurassic based on vertebrate fossils. Considered base (lower member) of Upper Lufeng and thus early Middle Jurassic by Wu et al. 2009 (equivalent to Chuanjie Fm.)
Lithology and environment
Primary lithology:red silty mudstone
Includes fossils?Y
Lithology description: purplish red silty mudstones
Environment:lacustrine indet.
Geology comments: playa lakebed
Taphonomy
Modes of preservation:body
Degree of concentration:-bonebed
Size of fossils:macrofossils,mesofossils
Articulated whole bodies:some
Associated major elements:some
Feeding/predation traces:arthropod boring
Collection methods and comments
Collection methods:selective quarrying,surface (in situ),mechanical,field collection,observed (not collected)
Reason for describing collection:general faunal/floral analysis
Collectors:W. Tao Collection dates:1985, 1995
Metadata
Also known as:Laochangjing, A'na; Konglongshan; Laochangqing; Ana Village; A’na village
Database number:70438
Authorizer:M. Carrano, P. Mannion, D. Nicholson Enterer:M. Carrano, D. Nicholson, P. Mannion
Modifier:M. Carrano Research group:vertebrate
Created:2007-03-22 13:08:28 Last modified:2025-02-22 15:12:02
Access level:the public Released:2007-03-22 13:08:28
Creative Commons license:CC0
Reference information

Primary reference:
23627.ETE R. A. Hengst and B. J. Buck. 2002. Upper Jurassic dinosaur assemblage in Yunnan Province, PRC. Geological Society of America Abstracts-with-Programs 34(6):430 [M. Carrano/M. Carrano]

Secondary references:

16660ETE X. Fang, Pang, J., Y. Zhang, Pan, X. Wang, Li and Cheng. 2000. [Lower, Middle, and Upper Jurassic divisions of the Lufeng region of Yunnan province]. Proceedings of the Third National Stratigraphical Conference of China. Geological Publishing House, Beijing 208-214 [M. Carrano/M. Carrano]
72051 X.-X. Ren, T. Sekiya, T. Wang, Z.-W. Yang, and H.-L. You. 2021. A revision of the referred specimen of Chuanjiesaurus anaensis Fang et al., 2000: a new early branching mamenchisaurid sauropod from the Middle Jurassic of China. Historical Biology 33(9):1872-1887 [P. Mannion/P. Mannion/M. Carrano]
39431 T. Sekiya. 2011. Re-examination of Chuanjiesaurus anaensis (Dinosauria: Sauropoda) from the Middle Jurassic Chuanjie Formation, Lufeng County, Yunnan Province, southwest China. Memoir of the Fukui Prefectural Dinosaur Museum 10:1-54 [P. Mannion/P. Mannion]
54021 H. Tong, Z. Dong, and T. Wang. 2015. A revision of Xinjiangchelys oshanensis (Ye, 1973), and new material from the Middle Jurassic of Lufeng, Yunnan Province, China. Bulletin de la Société Géologique de France 186(1):43-49 [D. Nicholson/D. Nicholson]
29514ETE X.-C. Wu, P. J. Currie, Z. Dong, S. Pan, and T. Wang. 2009. A new theropod dinosaur from the Middle Jurassic of Lufeng, Yunnan, China. Acta Geologica Sinica 83(1):9-24 [M. Carrano/M. Carrano]
76755 L. Xing, A. H. Parkinson, H. Ran, C. A. Pirrone, E. M. Roberts, J. Zhang, M. E. Burns, T. Wang, and J. Choiniere. 2016. The earliest fossil evidence of bone boring by terrestrial invertebrates, examples from China and South Africa. Historical Biology 28(8):1108-1117 [M. Carrano/M. Carrano]