Keywords: The Quarterly journal of the Geological Society of London (13889730079).jpg of the Species <br> Onchtjs pennstlvanictjs sp n Eig 5 <br> Spine when complete about half an inch long with a diameter <br> at base of about one eighth of an inch very slightly curved and con- <br> sisting of an inner core perhaps only composed of material filling <br> an original cavity and an outer sheath The outer portion shows <br> a fluted surface with eight ridges in the quarter of the circumference <br> which is visible ; ridges rounded their height being about half their <br> breadth ; the furrows between them acute at base and formed merely <br> by the edges of the two ridges without any breadth <br> Locality and horizon Perry county Pennsylvania in the Bloom- <br> field Sandstone or uppermost member of the Onondaga Yariegated <br> Shales <br> Eig 5 ” Onchus pennsylvaui- Fig 6 ” Onchus clintoni <br> cus showing fluted surface <br> and core <br> Onchus clintoni sp n Eig 6 <br> Spine slightly curved the part visible about half an inch long and <br> showing on the one side 5 rounded low ridges meeting each other <br> This statement appeared in 1858 37046899 114009 51125 Page 61 Text 41 http //www biodiversitylibrary org/page/37046899 1885 Geological Society of London NameFound Onchtjs pennstlvanictjs sp NameFound Onchus NameConfirmed Onchus NameBankID 4266148 NameFound Onchus clintoni NameConfirmed Onchus clintoni Claypole 1885 NameFound Shales Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 41 1885 Geology Periodicals Smithsonian Libraries bhl page 37046899 dc identifier http //biodiversitylibrary org/page/37046899 smithsonian libraries Information field Flickr posted date ISOdate 2014-04-30 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13889730079 2015-08-26 04 52 54 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1885 Photos uploaded from Flickr by Fæ using a script |