Wucaiwan Sino-American expedition, 2001 (Jurassic of China)

Also known as Zuolong type locality

Where: Xinjiang, China (45.2° N, 88.9° E: paleocoordinates 46.8° N, 91.3° E)

• coordinate estimated from map

• local area-level geographic resolution

When: upper Member (Shishugou Formation), Oxfordian (163.5 - 157.3 Ma)

• Upper part of the Shishugou Formation, Wucaiwan, Xinjiang, People’s Republic of China. Extensive 40Ar/39Ar dating of feldspars from intercalated tuffaceous layers of volcanic tuffs at Wucaiwan constrains the age of the specimen to between 158.7 ± 0.3 and 161.2 ± 0.2 Ma, approximately at the Oxfordian/Callovian boundary (Gradstein et al., 2004; Clark et al., 2006b). Because the holotype is from the upper part of the sediments between these dated tuffs, we consider the age of Zuolong to be Oxfordian.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone and conglomerate

• Upper part of the Middle to Upper Jurassic Shishugou Formation, which is a thick sedimentary group of interbedded sandstones, conglomerates, and paleosols

Size class: macrofossils

Collected by Sino-American Expedition in 2001; reposited in the IVPP

Collection methods: quarrying, mechanical,

Primary reference: J. N. Choiniere, J. M. Clark, C. A. Forster and X. Xu. 2010. A basal coelurosaur (Dinosauria: Theropoda) from the Late Jurassic (Oxfordian) of the Shishugou Formation in Wucaiwan, People's Republic of China. Journal of Vertebrate Paleontology 30(6):1773-1796 [M. Carrano/M. Carrano/R. Benson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 137832: authorized by Roger Benson, entered by Roger Benson on 21.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Avetheropoda -
Zuolong salleei n. gen. n. sp.
Zuolong salleei n. gen. n. sp. Choiniere et al. 2010 coelurosaur
Holotype IVPP V15912: left premaxilla; left maxilla; left quadrate; right and left quadratojugals; left squamosal; right and left ectopterygoids; left pterygoid; left lacrimal; partial frontal; partial parietal; left postorbital; one premaxillary and two maxillary or dentary teeth; five cervical, four dorsal, five sacral, and eight caudal vertebrae; right humerus; left radius and ulna; one complete manual ungual; left ilium; right and left pubes; right and left femora; right tibia; proximal right fibula; right metatarsals II–IV; three pedal phalanges, pedal ungual