Page:Field Notes of Junius Henderson, Notebook 1.djvu/54

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We found no fossils in upper Niobrara except the bands of Ostrea congestaWikispecies-logo.svgCommons-logo.svg Ostrea congesta crowded on flattened Inoceramus sp.Wikispecies-logo.svgCommons-logo.svg Inoceramus Just as they occur between BoulderCommons-logo.svgOpenstreetmap logo.svg Boulder Creek and Left Hand CreeksCommons-logo.svgOpenstreetmap logo.svg Left Hand Creek. The basal limestone contains large numbers of Inoceramus deformisWikispecies-logo.svgCommons-logo.svg Inoceramus deformis covered with Ostrea congestaWikispecies-logo.svgCommons-logo.svg Ostrea congesta, some of them (the InoceramusWikispecies-logo.svgCommons-logo.svg 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 barabiniWikispecies-logo.svgCommons-logo.svg Inoceramus barabini. In an exposure of Pierre nearly east of the SE point of the upper Niobrara there are many specimens of Baculites ovatusWikispecies-logo.svgCommons-logo.svg Baculites ovatus and Inoceramus barabiniWikispecies-logo.svgCommons-logo.svg 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 BaculitesWikispecies-logo.svgCommons-logo.svg Baculites