Also known as Yemoaxi
Where: Chongqing, China (29.6° N, 106.6° E: paleocoordinates 30.6° N, 111.5° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Lower Member (Shaximiao Formation), Bajocian (170.3 - 168.3 Ma)
• orig. assigned to Xiashaximiao Fm.
•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; siliciclastic sediments
Size class: macrofossils
Preservation: mold/impression, trace
Collected by Yang, Lockley in 1983, 2001, 2010
Collection methods: surface (in situ),
• original site destroyed by construction
Primary reference: Y. X. Yang and Y. D. Yang. 1987. Sichuan Pen Di Kong Long Zu Yin Hua Shi [Dinosaur Footprints from Mesozoic of Sichuan Basin] 1-30 [M. Carrano/M. Carrano]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 60492: authorized by Matthew Carrano, entered by Kaitlin Maguire on 16.05.2006, edited by Matthew Carrano
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Reptilia | |
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"Chongqingpus yemiaoxiensis n. sp." = Grallator yemiaoxiensis
"Chongqingpus yemiaoxiensis n. sp." = Grallator yemiaoxiensis Yang and Yang 1987 theropod trackway D
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"Chongqingpus nananensis n. gen. n. sp." = Kayentapus nananensis
"Chongqingpus nananensis n. gen. n. sp." = Kayentapus nananensis Yang and Yang 1987 theropod CFNY 1, 4; some of series V1394, 1396, 6; trackways A-C
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cf. Planolites sp.2 Nicholson 1873 |