This is a fossil of a fish species from the Triassic period, approximately 244 million years ago, belonging to the Middle Triassic. The fossil was discovered in the Guanling Formation of Luoping County, Yunnan Province, China, an area known for its rich fossil record and significant geological and paleontological value. The fish fossil exhibits a notable dorsal hump, characteristic of early osteichthyes, and is likely identified as **Kyphosichthys grandei**. The marine sedimentary environment of the Guanling Formation provided an ideal habitat for such ancient organisms, showcasing the diversity and complexity of the marine ecosystem during the Middle Triassic.