Huale Village, Luxi County (Triassic of China)

Also known as Mixosaurus luxiensis type locality

Where: Yunnan, China (24.5° N, 103.9° E: paleocoordinates 10.4° N, 94.0° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Upper Member (Guanling Formation), Anisian (247.2 - 242.0 Ma)

• It originates from the Upper Member (also known as Second Member or Member II) of the

•Guanling Formation (formerly part of the Gejiu Formation) and is Pelsonian (middle Anisian) in age (Wen et al. 2020; Xu et al. 2022; Hu and Liu 2023; Lu and Liu 2023; Hu et al. 2024), similar to the Luoping and Panxian faunas located nearby (Benton et al. 2013).

• formation-level stratigraphic resolution

Environment/lithology: marine; black, gray lime mudstone and mudstone

• The rock matrix of thinly laminated micritc limestone with alternating interlayers indicates an intraplatform sedimentary facies, similar to the depositional setting of the Luoping Biota (Hu et al. 2011; Wen et al. 2020).

Size class: macrofossils

• Mixosaurus luxiensis (HFUT HL-21-08-002) a nearly complete skeleton, with the

•postcranium mostly disarticulated

Collection methods: quarrying, mechanical,

• HFUT HL-21-08-002 is accessioned in the collections of the Geological Museum of Hefei University of Technology in Hefei, Anhui Province, China (HFUT). It was prepared using mounted needles and pneumatic tools in the paleontological preparation laboratory of HFUT. Detailed observations of the specimen were taken under a LEICA S9i microscope. Canon EOS 80D and Nikon D7200 cameras with macro lenses were used for specimen photography.

Primary reference: Y.-W. Fang, A. S. Wolniewicz, and J. Liu. 2024. A new species of mixosaurid ichthyosaur from the Middle Triassic of Luxi County, Yunnan Province, South China. Acta Palaeontologica Polonica 69(2):263-280 [E. Vlachos/F. Aspromonte]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 235296: authorized by Evangelos Vlachos, entered by Franco Aspromonte on 26.06.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Ichthyosauria - Mixosauridae
Mixosaurus luxiensis n. sp. Fang et al. 2024 ichthyosaur
HFUT HL-21-08-002 (holotype), a nearly complete skeleton, with the postcranium mostly disarticulated