Keywords: The Quarterly journal of the Geological Society of London (13859978845).jpg s and <br> figures of three families of Trilobites the Phacopidae Cheiruridae <br> and Encrinuridoe altogether 60 species The number of all our <br> Trilobites will be about 150 species of which only 15 are Upper <br> Silurian; all the rest are Lower Silurian The next part of my 36936356 113692 51125 Page 531 Text 38 http //www biodiversitylibrary org/page/36936356 1882 Geological Society of London NameFound Cheiruridae NameConfirmed Cheiruridae EOLID 4322446 NameBankID 982803 NameFound Phacopidae NameConfirmed Phacopidae EOLID 4322164 NameBankID 982778 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 38 1882 Geology Periodicals Smithsonian Libraries bhl page 36936356 dc identifier http //biodiversitylibrary org/page/36936356 smithsonian libraries Information field Flickr posted date ISOdate 2014-04-15 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13859978845 2015-08-26 07 50 53 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1882 Photos uploaded from Flickr by Fæ using a script |