A paper from 2019 not yet mentioned:
Glyphoderma robusta sp. nov.
With thumbnail images (click to expand slightly):
(I can't find a free pdf link at the moment...)
The fossils of Cyamodontoidea known in China are Late Triassic Sinocyamodus xinpuensis and Psephochelys polyosteoderma from Guanling County of Guizhou Province,and Middle Triassic Glyphoderma kangi from Fuyuan County of Guizhou Province. This paper deals with a new specimen of Cyamodontoidea (Reptilia: Placodontia) from the Zhuganpo Member of the Latinian Falang Formation of Middle Triassic in Fuyuan County of Yunnan Province. The specimen (C.1924) is now stored at Chongqing Natural History Museum.The studied specimen is well preserved with dorsal carapace, caudal vertebrae and some bones of the four limbs. The dorsal carapace consists of more than 500 small bony plates. In general, the carapace is similar to that of Glyphoderma kangi,without any groove or ridge in its middle part though. The carapace plate is densely arranged,without any radial groove or ridge on its surface. Its side wall is relatively more developed,composed of 3 to 4 ribs with tight connections. The four limbs of the studied specimen are much sturdier than those of Glyphoderma kangi. According to the characters mentioned above, the studied specimen is considered as a new species: Glyphoderma robusta sp. nov. This is the second species of Glyphoderma found from Fuyuan County of Yunnan Province.Â