"Secret Welsh fossil site reveals 462 million-year-old sea creatures"
A secret fossil site in Wales has yielded the preserved eyes and brains of 462 million-year-old creatures, including more than 170 species, most of which are new to science. The site, called "Castle Bank," contains a myriad of soft-bodied marine creatures and their organs, which are scarcely preserved in the fossil record, and resembles the world-renowned Cambrian deposits of Burgess Shale in Canada and Qingjiang biota in China. The rocks of Castle Bank are 50 million years younger and give researchers a unique window into how soft-bodied life diversified in the Ordovician Period.