Also known as Jinji

Where: Sichuan, China (31.1° N, 107.9° E: paleocoordinates 32.4° N, 112.3° E)

• coordinate based on political unit

• small collection-level geographic resolution

When: Lower Member (Shaximiao Formation), Bajocian (170.3 - 168.3 Ma)

• Several radiometric ages have been reported for the Shaximiao Formation, including 167 Ma or 172 Ma (Zong and Shi, 1997), 167–172 Ma or 178–169 Ma (Gou et al., 2000), 163±3 Ma (Li et al., 2010), 160±4 Ma (Luo et al., 2014), 158±7 Ma (Qian et al., 2016), and 159±2 Ma (Wang et al., 2018). However, more recent studies suggest an older age; Dai et al. 2022 reported a maximum depositional age for the bone-bearing layers of the lower member of the Shaximiao formation to be Bjaocan. Zhou et al. 2022 also supported a late Middle Jurassic age for the Shaximiao Formation (Bathonian-Callovian).

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collection methods: surface (in situ),

Primary reference: X. He. 1984. The Vertebrate Fossils of Sichuan. Sichuan Scientific and Technological Publishing House, Chengdu 1-168 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 193845: authorized by Matthew Carrano, entered by Matthew Carrano on 06.06.2018

Creative Commons license: CC BY (attribution)