Jiangshan peninsula sauropod (Jurassic of China)

Where: Guangxi, China (21.6° N, 108.3° E: paleocoordinates 23.3° N, 115.5° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Dongli Formation, Middle Jurassic (174.1 - 163.5 Ma)

• "The age of the Dongli Formation was hitherto doubtful. Previously, it was tentatively considered to be Upper Jurassic, while Wang suggested that it might be attributed to the Middle Jurassic because of the likely presence of Neocalamites. Based on the structure of its middle dorsal vertebra, the Guangxi taxon resembles Shunosaurus, and various other basal Eusauropoda (Cetiosaurus, Barapasaurus, Patagosaurus, Omeisaurus, Mamenchisaurus and Yuanmousaurus). It appears to be more derived than Shunosaurus in having a more complex dorsal neural structure, and may be more primitive than Omeisaurus and Mamenchisaurus in having a platycoelous dorsal centrum with deep but simple lateral depressions. Similarities in vertebral structure also suggest a close relationship with Cetiosaurus, Barapasaur, and Patagosaurus. This may imply that the geological age of the fossil-bearing deposit of the Dongli Formation is probably Middle Jurassic"

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected in 2007

Primary reference: J. Mo and E. Buffetaut. 2012. A sauropod dorsal vertebra from the Middle Jurassic of Guangxi, China. Journal of Science and Technology MSU 31(1):1-8 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 137589: authorized by Philip Mannion, entered by Philip Mannion on 18.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Saurischia -
Eusauropoda indet. Upchurch 1995 sauropod
NHMG 10441 (a nearly complete middle dorsal vertebra)