Shimiaogou tracksite (Cretaceous to of China)

Also known as SMG

Where: Sichuan, China (28.2° N, 105.6° E)

• Paleocoordinates: 22.3° N, 122.6° E (Wright 2013)

• coordinate stated in text

• outcrop-level geographic resolution

When: Upper Member (Jiaguan Formation), Barremian to Barremian (129.4 - 100.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial; massive sandstone

• "Well-developed wedge-shaped cross-stratification was observed in the large thick sandstone comprising the track-bearing blocks"

Size class: macrofossils

Preservation: mold/impression, trace

Collected by T. Xu in 2014–2015

Collection methods: surface (float),

Primary reference: L. Xing, M. G. Lockley, D. Marty, H. Klein, G. Yand, J. Zhang, G. Peng, Y. Ye, W. S. Persons, X. Yin, and T. Xu. 2016. A diverse saurischian (theropod–sauropod) dominated footprint assemblage from the Lower Cretaceous Jiaguan Formation in the Sichuan Basin, southwestern China: A new ornithischian ichnotaxon, pterosaur tracks and an unusual sauropod walking pattern. Cretaceous Research 60:176-193 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 219997: authorized by Matthew Carrano, entered by Matthew Carrano on 29.04.2021

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Pterosauria - Pteraichnidae
Pteraichnus sp.
Pteraichnus sp. Stokes 1957 pterosaur
tracks SMG-PI1–3
 Theropoda -
Theropoda indet.
Theropoda indet. Marsh 1881 theropod
trackways T1–T7
 Theropoda - Dromaeosauridae
cf. Velociraptorichnus sp.
cf. Velociraptorichnus sp. Zhen et al. 1994 maniraptoran
trackway SMG-D1-R1–L3
 Ornithischia - Iguanodontipodidae
Caririchnium liucixini n. sp.
Caririchnium liucixini n. sp. Xing et al. 2016 ornithopod
trackways SMG-O1–O8, O10–O11
 Saurischia -
Brontopodus sp.
Brontopodus sp. Farlow et al. 1989 sauropod
trackways SMG-S1–S3