At https://dailygalaxy.com/2025/11/dinosaur-92-feet-found-in-china/ … a dinosaur, 92 feet long, air filled bones, and a very long neck. Found in China’s Sichuan Basin – Tongnanlong zhimingi is the name it has been given. A newly identified species of dinosaur dug out of a Late Jurassic geological layer – prior to the Cretaceous.
Air filled spaces in the bones kept the skeleton lighter without making it weaker, we are told. It had huge shoulder blades and reinforced vertebrae. The same geological formation has yielded other large sauropods which indicates a rich ecosystem. Lots to munch upon. The sedimentary layer includes purple/ red mud stones and sand stones – with ripples from a turbulent current within the sediments. Fresh water bivalves, conchostraeons, as well as turtles seem to indicate the strata represents a watery environment such as a marsh or extensive wetlands. There had to be enough vegetation to feed and support massive herbivores. What was the purpose of the long necks, we may wonder. Did it feed on trees? Not only that, the link continues, the local conditions suggest the fossil was preserved close to its original death site. For example, its bones were not broken and shattered as in a tumbling motion. The dinosaur is said to have lived and died in the wetlands.