Hemenkou tracksite (Jurassic to of China)

Where: Yunnan, China (24.4° N, 101.7° E: paleocoordinates 20.9° N, 103.9° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Shedian Formation, Middle Jurassic to Middle Jurassic (174.7 - 145.0 Ma)

• originally assigned to the Lower Cretaceous Puchanghe Fm. (Fujita et al. 2004).

• bed-level stratigraphic resolution

Environment/lithology: lacustrine - small; paleosol/pedogenic, concretionary, brown, red, calcareous mudstone and medium-grained, coarse, intraclastic, gray sandstone

• Sandstones might be channel or crevasse splay deposits, mudstones are paleosols. Shallow lacustrine environment near tracksite.
• "The medium- to coarse-grained gray sandstones...contains rip-up clasts in the base and indicates trough cross-lamination occasionally. Reddish brown fine-grained sandstone, siltstone, and mudstone often include drab-halo root traces and calcareous nodules."

Size class: macrofossils

Preservation: mold/impression, trace

Collected by T. Huang, L. Xing in 2006, 2013

Collection methods: surface (in situ),

Primary reference: M. Fujita, Z. Wang, Y. Azuma, M. Shibata, and Z. Dong. 2008. First dinosaur track site from the Lower Cretaceous of Yunnan Province, China. Memoir of the Fukui Prefectural Dinosaur Museum 7:33-43 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 86424: authorized by Matthew Carrano, entered by Matthew Carrano on 02.02.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Dinosauria -
Dinosauria indet. Owen 1842 dinosaur
YO1-7; tridactyl
 Theropoda -
Theropoda indet. Marsh 1881 theropod
5 isolated tracks, ZLJ-HMK-T1, T2
Theropoda "indet. B" Marsh 1881 theropod
trackway HMK-T2, "morphotype B"
Theropoda "indet. A" Marsh 1881 theropod
trackway HMK-T1, "morphotype A"
 Theropoda - Grallatoridae
cf. Eubrontes sp. Hitchcock 1845 theropod
trackway HMK-T3, "morphotype C"
 Saurischia -
Sauropoda indet. Marsh 1878 sauropod
trackway HMK-S2PR1-PR2 plus numerous isolated tracks
Brontopodus sp. Farlow et al. 1989 sauropod
trackway HMK-S1PR1-PR2