Solving the mystery of the ancient Palaeocastor. Pioneering ranchers moving into Sioux County, Nebraska, in the mid-1800s began finding odd structures sticking out of eroded prairie hillsides. They ...
Queensland Museum scientists have described a 400-million-year-old fossil, which is possibly the ... More information: Carole J Burrow et al, A 3D braincase of the early jawed vertebrate ...