We found no fossils in upper Niobrara except the bands of Ostrea congesta crowded on flattened Inoceramus sp. Just as they occur between Boulder and Left Hand Creeks. The basal limestone contains large numbers of Inoceramus deformis covered with Ostrea congesta, some of them (the Inoceramus) quite large. At the next cut through the Niobrara the shales are badly involved in places vertical, and a small stream cuts through the entire series of lower Pierre, in which I found only three poorly preserved Inoceramus barabini. In an exposure of Pierre nearly east of the SE point of the upper Niobrara there are many specimens of Baculites ovatus and Inoceramus barabini, usually poorly preserved, though I found one or two of the latter in good state of preservation. I found one limestone lens about two or three feet in diameter from which had weathered many specimens of small Baculites
