Dashanpu Dinosaur Quarry [lower]: Bajocian - Oxfordian, China
collected 1972, 1974, 1977–1984

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Hybodontiformes - Hybodontidae
Hybodus sp. Agassiz 1834
Peng et al. 2005 1 specimen
ZDM 1005
Hybodus huangnidanensis Wang 1977
Peng et al. 2005 1 specimen
ZDM 1004-j
Hybodus zigongensis n. sp. Peng et al. 2005
Peng et al. 2005 9 specimens
ZDM 1004-a through ZDM 1004-i
Dipnoi - Ceratodontidae
Ceratodus zigongensis n. sp.
Peng et al. 2005 1 specimen
ZDM 1003
Amphibia - Temnospondyli - Brachyopidae
Sinobrachyops placenticephalus n. gen., n. sp. Dong 1985
Dong 1985 10 individuals
ZDM 2001 - holotype (skull, mandibles & several vertebrae)
Tritylodontidae
Polistodon chuannanensis n. gen., n. sp. He and Cai 1984
He and Cai 1984 1 individual
ZDM T8601
Bienotheroides zigongensis n. sp. Sun 1986
Sun 1986 1 specimen
ZDM 8602
Reptilia
Chengyuchelys sp. Young and Chow 1953
Yeh 1990 3 specimens
I-L1 (whereabouts unknown), ZDM 3019 (field no.: I-L2), ZDM 3005 (field no.: KI7)
    = Testudinata indet. Oppel 1811
Tong et al. 2012
ZDM I-L1 and I-L2 'not found' during study. Because Chengyuchelys might me a Late Jurassic or Early Cretaceous xinjiangchelyid, the taxonomic identity of these specimens is unknown
Chengyuchelys zigongensis n. sp. Yeh 1982
Yeh 1982 2 specimens
CV 00678 (holotype); Yeh (1990) additionally referred I-Z1 (ZDM 3012)
Reptilia - Testudines - Bashuchelyidae
Chengyuchelys dashanpuensis n. sp. Fang 1987
Yeh 1990 1 specimen
recombined as Chuannanchelys dashanpuensis
Dashanpu excavation number I-T19 (ZDM 3011)
Chengyuchelys sp. Young and Chow 1953
Yeh 1990 1 specimen
ZDM3004
    = Bashuchelys sp. Tong et al. 2012
Tong et al. 2012
Chengyuchelyidae indet. Yeh 1990
Yeh 1990 2 specimens
ZDM3002 preserves only the central and posterior carapace. Original records state that it was collected in November of 1983 within the vicinity of the sacrum of Omeisaurus tianfuensis and was provided an excavation number of I-J. ZDM3001, plastron and carapace
    = Bashuchelys sp. Tong et al. 2012
Tong et al. 2012
Chengyuchelys baenoides Young and Chow 1953
Yeh 1990 3 specimens
ZDM 3003, ZDM 1 (ZDM 3007), and ZDM 3 (ZDM 3008); IVPP V8805 removed to Sichuanchelys by Tong et al. (2012)
    = Bashuchelys youngi n. sp. Tong et al. 2012
Tong et al. 2012
Holotype shell (ZDM 3007 [field number ZDM 1]), IVPP V6507, anterior portion of a shell with articulated carapace and plastron, and fragments of left pectoral girdle and humerus; ZDM 3003, a shell with articulated carapace and plastron, carapace surface damaged, plastron lacking anterior and posterior ends; ZDM3006 (field number ZDM 7), a shell with articulated damaged carapace and plastron; ZDM 3008 (field number ZDM 3), posterior half of plastron
Chelonia indet. (Latreille 1800)
Yeh 1990 1 specimen
Because specimen V6507 is represented only by the anterior 1/3 of its carapace as described and diagnosed by Yeh (1982), it is regarded as indeterminate to species and hereby omitted from Chengyuchelys baenoides
    = Bashuchelys youngi Tong et al. 2012
Tong et al. 2012
Reptilia - Testudines - Xinjiangchelyidae
Protoxinjiangchelys sp. Tong et al. 2012
Tong et al. 2012 1 specimen
CV 00679
Chengyuchelys cf. zigongensis Yeh 1982
Yeh 1990 2 specimens
ZDM7 partial shell' (ZDM 3006); ZDM 3009 a complete plastron with relatively well-preserved gular and intergular scales
    = Protoxinjiangchelys salis n. gen., n. sp. Tong et al. 2012
Tong et al. 2012
Reptilia
Sichuanchelys sp. Ye and Pi 1997
Tong et al. 2012 1 specimen
IVPP V8805
Sichuanchelys chowi n. gen., n. sp. Ye and Pi 1997
Ye and Pi 1997 3 specimens
ZDM 3014 (holotype shell), 3017, 3001 (partial shells)
Reptilia - Goniopholididae
Sunosuchus shunanensis n. sp. Fu et al. 2005
Fu et al. 2005 1 specimen
ZDM 3401 - type (near complete skull)
Reptilia - Shartegosuchidae
Hsisosuchus dashanpuensis n. gen., n. sp. Gao 2001
Gao 2001 1 specimen
ZDM 3405, holotype partial skeleton
Reptilia - Fabrosauridae
Xiaosaurus dashanpensis n. gen., n. sp. Dong and Tang 1983
Dong and Tang 1983 3 individuals
IVPP 6730A (field no. Cr. 003), 6730B; ZDM 6015
Reptilia
Yandusaurus multidens n. sp. He and Cai 1983
He and Cai 1983 2 individuals
recombined as Hexinlusaurus multidens
ZDM 6001, T6002 (15 measurements)
Agilisaurus louderbacki n. gen., n. sp. Peng 1990
Peng 1992 1 individual
ZDM 6011 (11 measurements)
Stegosauria indet. Marsh 1877
Maidment et al. 2006 3 specimens
ZDM T7002, CV 720, 721
Huayangosaurus taibaii n. gen., n. sp. Dong et al. 1982
8 individuals
IVPP 6728, ZDM T7001, T7002, T7004, T7008, 7010; CV 00720, 00721
Gasosaurus constructus n. gen., n. sp. Dong and Tang 1985
Dong and Tang 1985 3 specimens
IVPP V.7264, V.7265; ZDM 9008 (3 measurements)
Chuandongocoelurus primitivus n. gen., n. sp. He 1984
He 1984 1 individual
CCG 20010
Reptilia - Metriacanthosauridae
Szechuanosaurus zigongensis n. sp. Gao 1993
Gao 1993 4 individuals
recombined as Yangchuanosaurus zigongensis
ZDM 9011–9015
Reptilia
Sauropoda indet. (Marsh 1878)
Peng et al. 2005 1 specimen
ZDM 5032, 3 dorsals
Reptilia - Cetiosauridae
Protognathus oxyodon n. gen., n. sp. Zhang 1988
Zhang 1988 1 specimen
recombined as Protognathosaurus oxyodon
CV 00732
Reptilia
Datousaurus bashanensis n. gen., n. sp. Dong and Tang 1984
Dong and Tang 1984 3 specimens
ZDM 5021. IVPP V7262-V7263, CV 00740
Dashanpusaurus dongi n. gen., n. sp. Peng et al. 2005
Peng et al. 2005 2 specimens
ZDM 5028 - holotype (incomplete skeleton including 6 cervicals, 12 dorsals, 4 sacrals, 33 caudals, left ulna, pelvic girdle and hindlimb; ZDM 5027 - paratype (incomplete skeleton including 12 dorsals, some ribs, left pectoral girdle, left humerus and radius)
Reptilia - Mamenchisauridae
Mamenchisauridae indet. Chao 1965
Peng et al. 2005 1 specimen
ZDM 5031, dorsal
Reptilia
Abrosaurus dongpoensis n. gen., n. sp. Ouyang 1989
Ouyang 1989 2 specimens
ZDM 5038, 5033 (1 measurement)
Omeisaurus jiaoi n. sp. Jiang et al. 2011
Jiang et al. 2011 1 specimen
ZDM 5050
Omeisaurus tianfuensis n. sp. He et al. 1984
He et al. 1984 13 individuals
ZDM 5005, 5007, 5046, 5701 (fied. no. II-C-9, II-E), 5702 (field no. I-U), 5703 (field no. I-N-1), 5704 (field no. I-J), 5705 (field no. AF), 5706 (field no. I-Y), 5707 (field no. I-A), 5708 (field no. I-G), 5709 (field no. I-Z), 5710 (field no. I-N2) (4 measurements)
Shunosaurus lii n. gen., n. sp. Dong et al. 1983
Dong et al. 1983 6 individuals
ZDM L033, L034, 5006, T5401–5403 (5 measurements)
Reptilia - Rhamphorhynchidae
Angustinaripterus longicephalus n. gen., n. sp. He et al. 1983
1 individual
ZDM T8001, single incomplete skull
Reptilia - Plesiosauria - Rhomaleosauridae
Bishanopliosaurus youngi Dong 1980
Peng et al. 2005 1 specimen
ZDM 4001
Actinopteri - Lepisosteiformes
Lepidotes dashanpuensis n. sp. Peng et al. 2005
Peng et al. 2005 1 specimen
ZDM 1001
see common names

Geography
Country:China State/province:Sichuan County:Zigong
Coordinates: 29.4° North, 104.9° East (view map)
Paleocoordinates:29.0° North, 109.4° East
Basis of coordinate:estimated from map
Altitude:314 meters
Geographic resolution:outcrop
Time
Period:Jurassic
*Period:Middle Jurassic
*International age/stage:Early/Lower Aalenian - Late/Upper Callovian
Key time interval:Bajocian - Oxfordian
Age range of interval:170.30000 - 157.30000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Shaximiao Member:Lower
Stratigraphic resolution:bed
Stratigraphy comments: Based on detrital zircon U-Pb dating from this formation (but not this locality), Wang et al. (2018) suggested an Oxfordian age for the lower beds, rather than Middle Jurassic, with 159 ± 2 Ma as the maximum depositional age. However, from a section near the Dashanpu Dinosaur Quarry, Ren et al. (2022) documented the youngest age for the zircon sample as 166.0 ± 1.59 Ma, and weighed average ages of the youngest subpopulation under the constraints of 1σ and 2σ are 170.9 ± 0.64 Ma and 169.9 ± 0.63 Ma, with a maximum confidence age of 169.9 ± 0.63 Ma selected as the final result.
Lithology and environment
Primary lithology:tabular,wave ripples,wavy/flaser/lenticular bedding,burrows,micaceous sandstone
Secondary lithology:blue mudstone
Includes fossils?Y
Lithology description: "micro-grained feldspatholithic sandstone, which is rich in mica fragments, matrix interstitial. Wave-ripple cross bedding, micro-wavy bedding and medium- to large-scale tabular cross bedding are clearly seen."
Environment:lacustrine indet.
Geology comments: "a lake-shore shallow-bank deposit under low energy conditions"
Taphonomy
Modes of preservation:body
Lagerst�tten type:concentrate
Degree of concentration:concentrated
Size of fossils:macrofossils,mesofossils
Spatial orientation:life position
Preservation of anatomical detail:good
Abundance in sediment:common
Articulated whole bodies:some
Associated major elements:many
Disassociated major elements:many
Disassociated minor elements:many
Fragmentation:occasional
Temporal resolution:snapshot
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:selective quarrying,surface (in situ),mechanical,field collection
Reason for describing collection:taxonomic analysis
Collection dates:1972, 1974, 1977–1984
Metadata
Also known as:Dashanpu Town
Database number:24883
Authorizer:M. Carrano, R. Benson, P. Mannion, R. Butler Enterer:M. Carrano, R. Butler, R. Benson, P. Mannion
Modifier:M. Carrano Research group:vertebrate
Created:2002-08-22 08:13:50 Last modified:2024-02-16 12:27:14
Access level:the public Released:2002-08-22 08:13:50
Creative Commons license:CC BY
Reference information

Primary reference:

6976. X. He, D. Yan, and C. Su. 1983. A new pterosaur from the Middle Jurassic of Dashanpu, Zigong, Sichuan. Journal of the Chengdu College of Geology 1:27-33 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

17552ETE S. Chatterjee and Z. Zheng. 2002. Cranial anatomy of Shunosaurus, a basal sauropod from the Middle Jurassic of China. Zoological Journal of the Linnean Society 136:145-169 [M. Carrano/M. Carrano]
44532 Z. Dong. 1985. A Middle Jurassic labyrinthodont (Sinobrachyops placenticephalus gen. et sp. nov.) from Dashanpu, Zigong, Sichuan Province. Vertebrata PalAsiatica 23(4):301-306 [P. Mannion/P. Mannion/P. Mannion]
13360ETE Z. Dong. 1992. Dinosaurian Faunas of China. China Ocean Press, Beijing 1-188 [M. Carrano/M. Carrano/M. Carrano]
58575 Z. Dong. 1997. Chinese dinosaurs. In P. J. Currie & K. Padian (ed.), Encyclopedia of Dinosaurs 118-124 [M. Carrano/M. Carrano]
62082 Z. Dong. 1997. Zigong Dinosaur Museum. In P. J. Currie & K. Padian (ed.), Encyclopedia of Dinosaurs 790-794 [M. Carrano/M. Carrano]
36736ETE Z. Dong. 1998. On Asiatic sauropods and their phylogenetic relationships. In A. M. G. de Carvalho, A. M. Andrade, V. F. dos Santos, J. Cascalho, R. Taborda, (eds.), I Encontro Internacional sobre Paleobiologia dos Dinossáurios. Museu Nacional de História Natural, Lisboa 79-88 [M. Carrano/M. Carrano/M. Carrano]
44105% 26200Z. Dong and Z. Tang. 1983. New ornithopod genus from the Middle Jurassic of Sichuan Basin, China . Vertebrata PalAsiatica 21(2):168-171 [M. Carrano/M. Carrano/M. Uhen]
7755 Z. Dong and Z. Tang. 1984. [Note on a new Mid-Jurassic sauropod (Datousaurus bashanensis gen. et sp. nov.) from Sichuan Basin, China]. Vertebrata PalAsiatica 22(1):69-75 [M. Carrano/M. Carrano/M. Carrano]
7752 Z. Dong and Z. Tang. 1985. A new Mid-Jurassic theropod (Gasosaurus constructus gen. et sp. nov.) from Dashanpu, Zigong, Sichuan Province, China. Vertebrata PalAsiatica 23(1):77-83 [M. Carrano/M. Carrano/M. Carrano]
17258ETE Z. Dong, S. Zhou, and H. Zhang. 1983. [Dinosaurs from the Jurassic of Sichuan]. Palaeontologica Sinica, New Series C, Whole Number 162(23):1-136 [M. Carrano/M. Carrano]
44204 Q.-M. Fu, S.-Y. Ming, and G.-Z. Peng. 2005. A new species of Sunosuchus from Zigong, Sichuan, China. Vertebrata PalAsiatica 43(1):76-83 [P. Mannion/P. Mannion]
29517ETE Y. Gao. 1993. [A new species of Szechuanosaurus from the Middle Jurassic of Dashanpu, Zigong, Sichuan]. Vertebrata PalAsiatica 31(4):308-314 [M. Carrano/M. Carrano]
42513 Y. -H. Gao. 2001. A new species of Hsisosuchus (Mesoeucrocodylia) from Dashanpu, Zigong Municipality, Sichuan Province. Vertebrata PalAsiatica 39(3):177-184 [R. Benson/R. Benson]
62944 Q. He. 1984. Dinosaur finds. China Reconstructs 33(3):68-69 [M. Carrano/M. Carrano]
14527ETE X. He. 1984. The Vertebrate Fossils of Sichuan. Sichuan Scientific and Technological Publishing House, Chengdu 1-168 [M. Carrano/M. Carrano/M. Carrano]
6970 X. He and K. Cai. 1983. A new species of Yandusaurus (hypsilophodont dinosaur) from the Middle Jurassic of Dashanpu, Zigong, Sichuan. Journal of the Chengdu College of Geology 1:1-14 [M. Carrano/M. Carrano/M. Carrano]
28525ETE X. He and K. Cai. 1984. The tritylodont remains from Dashanpu, Zigong. Journal of Chengdu College of Geology 1984(suppl. 2):33-45 [M. Carrano/M. Carrano]
15058ETE X. He and K. Cai. 1984. The Middle Jurassic dinosaur fauna from Dashanpu, Zigong, Sichuan. Vol. I. The ornithopod dinosaurs. Sichuan Scientific and Technological Publishing House, Chengdu 1-71 [M. Carrano/M. Carrano/M. Carrano]
28524ETE X. He, K. Li, K. Cai and Y. Gao. 1984. [Omeisaurus tianfuensis—a new species of Omeisaurus from Dashanpu, Zigong, Sichuan]. Journal of Chengdu College of Geology 1984(suppl. 2):13-32 [M. Carrano/M. Carrano/M. Carrano]
37503 S. Jiang, F. Li, G.-Z. Peng and Y. Ye. 2011. [A new species of Omeisaurus from the Middle Jurassic of Zigong, Sichuan]. Vertebrata PalAsiatica 49(2):185-194 [M. Carrano/M. Carrano]
19489ETE S. C. R. Maidment, G. Wei, and D. B. Norman. 2006. Re-description of the postcranial skeleton of the Middle Jurassic stegosaur Huayangosaurus taibaii. Journal of Vertebrate Paleontology 26(4):944-956 [M. Carrano/M. Carrano]
35971ETE H. Ouyang. 1989. [A new sauropod from Dashanpu, Zigong Co., Sichuan Province (Abrosaurus dongpoensis gen. et sp. nov.)]. Zigong Dinosaur Museum Newsletter 2:10-14 [M. Carrano/M. Carrano]
10370 G. Peng. 1992. Jurassic ornithopod Agilisaurus louderbacki (Ornithopoda: Fabrosauridae) from Zigong, Sichuan, China. Vertebrata PalAsiatica 30(1):39-53 [M. Carrano/M. Carrano/M. Carrano]
43887 G. Peng, Y. Ye, Y. Gao, C. Shu, and S. Jiang. 2005. A new camarasaurid from the Middle Jurassic, Xiashaximiao Formation in Dashanpu, China. In G. Peng (ed.), Jurassic Dinosaur Faunas in Zigong 81-85 [P. Mannion/P. Mannion]
82845 G. Peng, Y. Ye, Y. Gao, C. Shu, and S. Jiang. 2005. Zìgòng dìqū zhū luó jì kǒnglóng dòngwù qún [Jurassic Dinosaur Faunas in Zigong]. 1-236 [M. Carrano/M. Carrano]
84662 X.-X. Ren, S. Jiang, X.-R. Wang, G.-Z. Peng, Y. Ye, L. King, and H.-L. You. 2022. Osteology of Dashanpusaurus dongi (Sauropoda: Macronaria) and new evolutionary evidence from Middle Jurassic Chinese sauropods. Journal of Systematic Palaeontology 20(1):1-72 [P. Mannion/P. Mannion/M. Carrano]
83110 X.-X. Ren, S. Jiang, X.-R. Wang, G.-Z. Peng, Y. Ye, L. Jia, and H.-L. You. 2023. Re-examination of Dashanpusaurus dongi (Sauropoda: Macronaria) supports an early Middle Jurassic global distribution of neosauropod dinosaurs. Palaeogeography, Palaeoclimatology, Palaeoecology 610:111318 [P. Mannion/P. Mannion/P. Mannion]
45351 A. Sun. 1986. New material of Bienotheroides (tritylodont reptile) from Shaximiao Formation of Sichuan. Vertebrata PalAsiatica 24(3):165-170 [P. Mannion/P. Mannion]
44036 H. Tong, I. Danilov, Y. Ye, H. Ouyang, and G. Peng. 2012. Middle Jurassic turtles from the Sichuan Basin, China: a review. Geological Magazine 149(4):675-695 [R. Benson/R. Benson]
5722ETE 1478W. Xia, X. Li, and Z. Yi. 1984. The burial environment of dinosaur fauna in lower Shaximiao Formation of Middle Jurassic at Dashanpu, Zigong, Sichuan. Journal of Chengdu College of Geology 1984(suppl. 2):46-59 [A. Behrensmeyer/A. Behrensmeyer/M. Carrano]
76752 L. Xing, G. Peng, H. Klein, Y. Ye, S. Jiang, M. E. Burns, and H. Ran. 2017. Middle Jurassic tetrapod burrows preserved in association with the large sauropod Omeisaurus jiaoi from the Sichuan Basin, China. Historical Biology 29(7):931-936 [M. Carrano/M. Carrano]
26666ETE Y. Ye, G.-z. Peng, and S. Jiang. 2007. [Preliminary histological study on the long bones of Middle Jurassic Shunosaurus and Omeisaurus from Dashanpu, Zigong, Sichuan]. Acta Palaeontologica Sinica 46(1):135-144 [M. Carrano/M. Carrano]
44035 Y. Ye and X. Pi. 1997. [A new genus of Chengyuchelyidae from Dashanpu, Zigong, Sichuan]. Vertebrata PalAsiatica 35(3):182-188 [R. Benson/R. Benson]
44058 H. -K. Yeh. 1982. Middle Jurassic turtles from Sichuan, SW. China. Vertebrata PalAsiatica 20(4):282-290 [R. Benson/R. Benson]
44006 H. -K. Yeh. 1990. Fossil turtles from Dashanpu, Zigong, Sichuan. Vertebrata PalAsiatica 28(4):305-311 [R. Benson/R. Benson/J. Tennant]
28526ETE Y. Zhang. 1988. The Middle Jurassic dinosaur fauna from Dashapu, Zigong, Sichuan. Vol. I. Sauropod dinosaur (1). Shunosaurus. Sichuan Publishing House of Science and Technology, Chengdu 1-89 [M. Carrano/M. Carrano]
52114 Y. Zhang, D. C. Yang, and G. Peng. 1984. [New materials of Shunosaurus from Middle Jurassic of Dashanpu, Zigong, Sichuan]. Journal of Chengdu College of Geology 2:1-12 [M. Carrano/M. Carrano]
14300ETE S. Zhou. 1983. A nearly complete skeleton of stegosaur from Middle Jurassic of Dashanpu, Zigong, Sichuan. Journal of Chengdu College of Geology 1983(suppl. 1):15-26 [M. Carrano/M. Carrano/M. Carrano]