Dianmeisaurus

{{Short description|Extinct genus of reptiles}}

{{Automatic taxobox

| fossil_range = Middle Triassic, {{fossil_range|Anisian}}

| image = Dianmeisaurus mutaensis (holotype).png

| image_caption = Holotype specimen of D. mutaensis, likely representing an immature individual

| taxon = Dianmeisaurus

| authority = Shang & Li, 2015

| type_species = {{extinct}}Dianmeisaurus gracilis

| type_species_authority = Shang & Li, 2015

| subdivision_ranks = Other species

| subdivision =

• {{extinct}}D. mutaensis {{small|Hu, Li & Liu, 2024}}

}}

Dianmeisaurus is an extinct genus of pachypleurosaur from the Middle Triassic Guanling Formation in China. The type species is D. gracilis.{{Cite journal|last1=Qing-Hua Shang|last2=Chun Li|date=2015|title=A new small-sized eosauropterygian (Diapsida: Sauropterygia) from the Middle Triassic of Luoping, Yunnan, southwestern China|url=https://www.cnki.net/kcms/doi/10.19615/j.cnki.1000-3118.2015.04.001.html|url-status=live|access-date=2021-11-09|website=www.cnki.net|doi=10.19615/j.cnki.1000-3118.2015.04.001|archive-url=https://web.archive.org/web/20211109202349/https://www.cnki.net/kcms/doi/10.19615/j.cnki.1000-3118.2015.04.001.html |archive-date=2021-11-09 }} An additional species, D. mutaensis, was named in 2024 based on a small skeleton likely belonging to an immature individual.{{Cite journal |last1=Hu |first1=Yi-Wei |last2=Li |first2=Qiang |last3=Liu |first3=Jun |date=2024-01-05 |title=A new pachypleurosaur (Reptilia: Sauropterygia) from the Middle Triassic of southwestern China and its phylogenetic and biogeographic implications |journal=Swiss Journal of Palaeontology |volume=143 |issue=1 |pages=1 |doi=10.1186/s13358-023-00292-4 |issn=1664-2384|doi-access=free }}