Crab Bitten by a Fish from the Upper Cretaceous Pierre Shale of South Dakota
A single specimen of Raninella shows evidence of being bitten by a small predator. The fragmentary carapace has been punctured at four points and fractured at two. Three of the punctures and the two fractures were made from below, and the other puncture was made from above. The teeth of the predator, probably a fish, were small, round, and widely spaced.