Dashanpu Dinosaur Quarry [Xiashaximiao Fm.] (Jurassic to of China)

Where: Sichuan, China (29.4° N, 104.9° E: paleocoordinates 29.6° N, 109.7° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Xiashaximiao Formation, Bajocian to Bajocian (170.3 - 163.5 Ma)

• "from approximately the middle of the lower member of the Xiashaximiao Formation" (= Lower Shaximiao); Lower Shaximiao is suggested to be either Bajocian or Bathonian-Callovian in age

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; tabular, micaceous sandstone and blue mudstone

• "a lake-shore shallow-bank deposit under low energy conditions"
• "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."

Size classes: macrofossils, mesofossils

Collected in 1972, 1974, 1977–1984

Collection methods: quarrying, surface (in situ), mechanical,

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 24883: authorized by Matthew Carrano, entered by Matthew Carrano on 22.08.2002, edited by Philip Mannion, Roger Benson and Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Temnospondyli - Brachyopidae
Sinobrachyops placenticephalus n. gen. n. sp.1 Dong 1985 tetrapod
ZDM 1 - holotype (skull, mandibles & several vertebrae)
Reptilia
 Testudinata -
Testudinata indet.19 Oppel 1811 turtle
I-L1, I-L2
 Testudines - Xinjiangchelyidae
Protoxinjiangchelys sp.19 Tong et al. 2012 turtle
CV 00679
Protoxinjiangchelys salis n. gen. n. sp.19 Tong et al. 2012 turtle
ZDM7 partial shell' ZDM3009 a complete plastron with relatively well-preserved gular and intergular scales
 Testudines - Bashuchelyidae
"Chengyuchelys dashanpuensis n. sp." = Chuannanchelys dashanpuensis22, Bashuchelys sp.19, Bashuchelys sp.19, Bashuchelys youngi n. sp.19, Bashuchelys youngi19
"Chengyuchelys dashanpuensis n. sp." = Chuannanchelys dashanpuensis22 Fang 1987 turtle
Dashanpu excavation number I-T19
Bashuchelys sp.19 Tong et al. 2012 turtle
CV 00679 (first reported by Yeh 1982), I-L1, I-L2, KI-7, and ZDM3004
Bashuchelys sp.19 Tong et al. 2012 turtle
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 youngi n. sp.19 Tong et al. 2012 turtle
ZDM3003, ZDM1, and ZDM3 (IVPP V8805 removed to Sichuanchelys by Tong et al. (2012)
Bashuchelys youngi19 Tong et al. 2012 turtle
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
 Testudinata - Sichuanchelyidae
Sichuanchelys sp.19 Ye and Pi 1997 turtle
IVPP V8805
Sichuanchelys chowi n. gen. n. sp.20 Ye and Pi 1997 turtle
ZDM 3014 (holotype shell), 3017, 3001 (partial shells)
 Testudinata -
Chengyuchelys zigongensis n. sp.21 Yeh 1982 turtle
CV 00678 (holotype); Yeh (1990) additionally referred I-Z1
 Saurischia -
Datousaurus bashanensis n. gen. n. sp.3, Abrosaurus dongpoensis n. gen. n. sp.15
Datousaurus bashanensis n. gen. n. sp.3 Dong and Tang 1984 sauropod
ZDM 5021
Abrosaurus dongpoensis n. gen. n. sp.15 Ouyang 1989 sauropod
ZDM 5038, 5033
 Saurischia - Camarasauridae
Dashanpusaurus dongi n. gen. n. sp.17
Dashanpusaurus dongi n. gen. n. sp.17 Peng et al. 2005 camarasaurid
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)
 Saurischia -
Shunosaurus lii n. gen. n. sp.5
Shunosaurus lii n. gen. n. sp.5 Dong et al. 1983 sauropod
ZDM L033, L034, 5006, T5401–5403
 Saurischia - Mamenchisauridae
Omeisaurus tianfuensis n. sp.12 He et al. 1984 mamenchisaurid
ZDM 5005, 5007, 5046, 5701, 5702
Omeisaurus jiaoi n. sp.13 Jiang et al. 2011 mamenchisaurid
ZDM 5050
 Saurischia -
"Protognathus oxyodon n. gen. n. sp." = Protognathosaurus oxyodon23
"Protognathus oxyodon n. gen. n. sp." = Protognathosaurus oxyodon23 Zhang 1988 first jaw lizard
 Avetheropoda - Metriacanthosauridae
"Szechuanosaurus zigongensis n. sp." = Yangchuanosaurus zigongensis7
"Szechuanosaurus zigongensis n. sp." = Yangchuanosaurus zigongensis7 Gao 1993 allosauroid
ZDM 9011-9014
 Saurischia -
Gasosaurus constructus n. gen. n. sp.4, Chuandongocoelurus primitivus n. gen. n. sp.9
Gasosaurus constructus n. gen. n. sp.4 Dong and Tang 1985 tetanuran
Chuandongocoelurus primitivus n. gen. n. sp.9 He 1984 tetanuran
CCG 20010
 Ornithischia -
Stegosauria indet.14 ornithischian
ZDM T7002, CV 720, 721
Huayangosaurus taibaii n. gen. n. sp. Dong et al. 1982 ornithischian
IVPP 6728, ZDM T7001, 7003, 7004
 Neornithischia -
Agilisaurus louderbacki n. gen. n. sp.16, "Yandusaurus multidens n. sp." = Hexinlusaurus multidens10
Agilisaurus louderbacki n. gen. n. sp.16 Peng 1990 ornithischian
"Yandusaurus multidens n. sp." = Hexinlusaurus multidens10 He and Cai 1983 ornithischian
 Ornithischia -
Xiaosaurus dashanpensis n. gen. n. sp.2
Xiaosaurus dashanpensis n. gen. n. sp.2 Dong and Tang 1983 small lizard
 Pterosauria - Rhamphorhynchidae
Angustinaripterus longicephalus n. gen. n. sp. He et al. 1983 pterosaur
ZDM T8001, single incomplete skull
 Loricata - Goniopholididae
Sunosuchus shunanensis n. sp.6 Fu et al. 2005 crocodilian
ZDM 3401 - type (near complete skull)
 Loricata - Shartegosuchidae
Hsisosuchus dashanpuensis n. gen. n. sp.8
Hsisosuchus dashanpuensis n. gen. n. sp.8 Gao 2001 crocodilian
ZDM 3405, holotype partial skeleton
Osteichthyes
 Therapsida - Tritylodontidae
Polistodon chuannanensis n. gen. n. sp.11 He and Cai 1984 therapsid
ZDM T8601
Bienotheroides zigongensis n. sp.18 Sun 1986 therapsid
IVPP (partial skull)