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  1. Bibliographic index of American Ordovician and Silurian fossils, by Ray S. Bassler.
    By: Bassler, Ray S.
    Publication info: Washington,Govt. Print. Off.,1915.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Bibliography  Ordovician  Paleontology  Silurian  
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  2. The Bryozoa of the Lower Silurian in Minnesota,
    By: Ulrich, Edward Oscar,
    Publication info: Minneapolis,1893
    Contributed by: Cornell University Library
    Subjects: Bryozoa, Fossil  Minnesota  Ordovician  Paleontology  
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  3. Cambrian and Ordovician / Maryland Geological Survey.
    By: Maryland Geological Survey. - Bassler, Ray S.
    Publication info: Baltimore :The Johns Hopkins press,1919.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Cambrian  Geology  Geology, Stratigraphic  Maryland  Ordovician  Paleontology  
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  4. Catalogue of fossils occurring in the Cincinnati group of Ohio, Indiana and Kentucky / by E. O. Ulrich.
    By: Ulrich, Edward Oscar,
    Publication info: Cincinnati,Printed by James Barclay,1880.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    Subjects: Catalogs and collections  Fossils  Ordovician  Paleontology  United States  
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  5. Catalogue of the fossils for the Cincinnati group / by Jos. F. James, custodian Cincinnati society of natural history. Published by order of Committee on palaeontology.
    By: James, Joseph F. - Cincinnati Society of Natural History.
    Publication info: Cincinnati :Printed by J. Barclay,1881.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    Subjects: Catalogs and collections  Fossils  Ordovician  Paleontology  
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  6. Figures and descriptions of Canadian organic remains.
    By: Billings, E. - Hall, James, - Jones, T. Rupert - Salter, John William, - Thompson, John Vaughan, - Geological Survey of Canada.
    Publication info: Montreal :Printed by J. Lovell,1858-1865 (v. 1, 1859)
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    Subjects: Canada  Ordovician  Paleontologie  Paleontology  Silurian  
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  7. The Lower Silurian Lamellibranchiata of Minnesota.
    By: Ulrich, Edward Oscar,
    Publication info: [Minneapolis]1894.
    Contributed by: Cornell University Library
    Subjects: Bivalves  Minnesota  Ordovician  Paleontology  
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  8. The Lower Silurian Ostracoda of Minnesota. By E. O. Ulrich.
    By: Ulrich, Edward Oscar,
    Publication info: [Minneapolis]1894.
    Contributed by: Cornell University Library
    Subjects: Minnesota  Ordovician  Ostracoda  Paleontology  
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  9. The Lower Siluric shales of the Mohawk valley, by Rudolf Ruedemann.
    By: Ruedemann, Rudolf,
    Publication info: Albany,University of the State of New York,1912.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Geology  Geology, Stratigraphic  Mohawk Valley  New York (State)  Ordovician  Paleontology  
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  10. Morphology and arrangement of meromes in Ischadites dixonensis, an Ordovician Receptaculitid / Daniel C. Fisher -- and Matthew H. Nitecki --.
    By: Fisher, Daniel C. - Nitecki, Matthew H.
    Publication info: Chicago :Field Museum of Natural History,1978.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Illinois  Ischadites dixenensis  Ordovician  Paleobotany  
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  11. New Archaeoscyphia (Porifera) from the Ordovician of Anticosti Island, Quebec / J. Keith Rigby -- and Matthew H. Nitecki --.
    By: Rigby, J. Keith. - Nitecki, Matthew H.,
    Publication info: [Chicago] :Field Museum of Natural History,1973.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Anticosti Island  Ordovician  Paleontology  Québec (Province)  Sponges, Fossil  
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  12. New trilobites from the Maquoketa beds of Fayette county, Iowa / by Arthur Ware Slocom -- ; Oliver Cummings Farrington --
    By: Slocom, Arthur Ware, - Farrington, Oliver C. - Field Museum of Natural History.
    Publication info: Chicago :Field Museum of Natural History ,1913.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Fayette County  Iowa  Ordovician  Paleontology  Trilobites  
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  13. North American cyclocrinitid algae / [by] Matthew H. Nitecki --
    By: Nitecki, Matthew H.
    Publication info: [Chicago]Field Museum of Natural History,1970.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Dasycladaceae, Fossil  North America  Ordovician  Paleontology  Silurian  
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  14. North American Silurian receptaculitid algae / [by] Matthew H. Nitecki -- [Patricia M. Williams, -- editor --]
    By: Nitecki, Matthew H. - Williams, Patricia M.
    Publication info: Chicago :Field Museum Press ,1972.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Dasycladaceae, Fossil  North America  Ordovician  Paleontology  Silurian  
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  15. Notes and descriptions of some new or hitherto unrecorded species of fossils from the Cambro-Silurian (Ordovician) rocks of the province of Quebec by Henry M. Ami.
    By: Ami, Henry M.
    Publication info: Montreal :s.n.,1892?
    Contributed by: Canadiana.org (archive.org)
    Subjects: Geology  Ordovician  Paleontology  Québec (Province)  
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  16. On the nature of the holotype of Nipterella paradoxica (Billings) / [by] Matthew H. Nitecki --
    By: Nitecki, Matthew H.
    Publication info: [Chicago] :Field Museum of Natural History,1968.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Mingan Islands  Nipterella paradoxica  Ordovician  Paleontology  Québec (Province)  
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  17. Ordovician Batophoreae (Dasycladales) from Michigan / Matthew H. Nitecki --.
    By: Nitecki, Matthew H.
    Publication info: Chicago :Field Museum of Natural History,1976.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Archaeobatophora typa  Delta County  Michigan  Ordovician  Paleobotany  
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  18. Ordovician fossils of north China,
    By: Grabau, Amadeus W.
    Publication info: Peking,Published by the Geological Survey of China,1922.
    Contributed by: Cornell University Library
    Subjects: China  Ordovician  Paleontology  
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  19. Ordovician fossils of north China, by Amadeus W. Grabau, with plates I-IX and 20 text figures.
    By: Grabau, Amadeus W.
    Publication info: Peking :Published by the Geological Survey of China,1922.
    Contributed by: University of California Libraries (archive.org)
    Subjects: China  Ordovician  Paleontology  
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  20. Ordovician Receptaculites camacho n. sp. from Argentina / Matthew H. Nitecki -- and Gerald G. Forney --.
    By: Nitecki, Matthew H. - Forney, Gerald Glenn. - Field Museum of Natural History.
    Publication info: Chicago :Field Museum of Natural History,1978.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Algae, Fossil  Argentina  Ordovician  Paleobotany  
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  21. The Ordovician trilobite Pseudogygites Kobayashi in eastern and Arctic North America /
    By: Ludvigsen, Rolf. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,1979.
    Contributed by: ROM - University of Toronto (archive.org)
    Subjects: North America  Ordovician  Paleontology  Trilobites  
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  22. Ordovician vertebrates from Western United States / Robert H. Denison --
    By: Denison, Robert H.
    Publication info: [Chicago] :Field Museum of Natural History,1967.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Ordovician  Paleontology  Vertebrates, Fossil  West (U.S.)  
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  23. Organic buildups in the Lower Ordovician (Canadian) of Texas and Oklahoma / Donald Francis Toomey -- and Matthew H. Nitecki --.
    By: Toomey, Donald F. - Nitecki, Matthew H. - Field Museum of Natural History.
    Publication info: [Chicago] :Field Museum of Natural History,1979.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Algae, Fossil  Oklahoma  Ordovician  Paleontology  Sponges, Fossil  Texas  
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  24. Phosphatic microfossils from the Ordovician of the United States / Matthew H. Nitecki --, Raymond C. Gutschick --, John E. Repetski --.
    By: Nitecki, Matthew H. - Gutschick, Raymond C. - Repetski, John E.,
    Publication info: Chicago :Field Museum of Natural History,1975.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Micropaleontology  Ordovician  Paleontology  Phosphates  United States  
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  25. Preliminary studies of the ultrastructure of selected Ordovician conodonts /
    By: Barnes, Christopher R. - Monroe, E. A. - Sass, Daniel B. - Royal Ontario Museum.
    Publication info: [Toronto] :Royal Ontario Museum,1970.
    Contributed by: ROM - University of Toronto (archive.org)
    Subjects: Conodonts  Ordovician  Paleontology  
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  26. Redescription of type specimens of bryozoan Stigmatella from the Upper Ordovician of the Toronto region, Ontario /
    By: Fritz, Madeleine A. - Royal Ontario Museum.
    Publication info: [Toronto] :Royal Ontario Museum,1973.
    Contributed by: ROM - University of Toronto (archive.org)
    Subjects: Ontario  Ordovician  Paleontology  Stigmatella  Toronto Region  
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  27. Redescription of type specimens of species of the bryozoan genera Monticulipora, Mesotrypa, Peronopora, and Prasopora, from the upper Ordovician rocks of Toronto and vicinity, Ontario, Canada /
    By: Fritz, Madeleine A. - Royal Ontario Museum.
    Publication info: [Toronto] :Royal Ontario Museum,1976.
    Contributed by: ROM - University of Toronto (archive.org)
    Subjects: Bryozoa, Fossil  Ontario  Ordovician  Paleontology  Toronto Region  
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  28. Redescription of type specimens of species of the Bryozoan genera Dekayia, Homotrypa, and Stigmatella from Upper Ordovician rocks along Workman's Creek, Ontario /
    By: Fritz, Madeleine A. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,1982.
    Contributed by: ROM - University of Toronto (archive.org)
    Subjects: Bryozoa, Fossil  Ontario  Ordovician  Paleontology  Workman's Creek  
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  29. Redescription of type specimens of species of the Bryozoan genera Atactoporella, Homoptrypa, and Homotrypella from the Upper Ordovician Rocks of the Credit River Valley, Ontario, Canada /
    By: Fritz, Madeleine A. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,1977.
    Contributed by: ROM - University of Toronto (archive.org)
    Subjects: Bryozoa, Fossil  Credit River Valley  Ontario  Ordovician  Paleontology  Type specimens  
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  30. Redescription of type specimens of the Bryozoan Heterotrypa from Upper Ordovician Rocks of the Credit River Valley, Ontario, Canada /
    By: Fritz, Madeleine A. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,1975.
    Contributed by: ROM - University of Toronto (archive.org)
    Subjects: Credit River Valley  Ontario  Ordovician  Paleontology  
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  31. Revised phylogeny and functional interpretation of the Edrioasteroidea based on new taxa from the Early and Middle Ordovician of western Utah / Thomas E. Guensburg --, James Sprinkle --.
    By: Guensburg, Thomas Edgar. - Sprinkle, James, - Field Museum of Natural History.
    Publication info: Chicago, Ill. :Field Museum of Natural History,1994.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Classification  Echinodermata, Fossil  Edrioasteroidea  Ordovician  Paleontology  Utah  
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  32. Spechts Ferry (Middle Ordovician) bryozoan fauna from Illinois, Wisconsin, and Iowa.
    By: Perry, Thomas G.
    Publication info: Urbana,1962.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Bryozoa, Fossil  Middle west  Ordovician  Paleontology  
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  33. Stipatocrinus, a new and unusual camerate crinoid from the lower silurian of western New York /
    By: Eckert, James D., - Brett, Carlton E. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,1987.
    Contributed by: ROM - University of Toronto (archive.org)
    Subjects: Crinoidea, Fossil  New York (State)  Ordovician  Paleontology  
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  34. Stratigraphy and paleontology of the Credit River section, accompanied by seven plates, also insert entitled "Composite section of the rocks of the Credit River.
    By: Dyer, William Spafford, - Toronto, Ont.
    Publication info: [TorontoThe United Press][192-?]
    Contributed by: Gerstein - University of Toronto (archive.org)
    Subjects: Credit River  Ontario  Ordovician  Paleontology  Paleontology, Stratigraphic  
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  35. Systematic ichnology of the Late Ordovician Georgian Bay formation of southern Ontario, eastern Canada /
    By: Stanley, D. Christopher A. - Pickerill, R. K. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,c1998.
    Contributed by: Royal Ontario Museum (archive.org)
    Subjects: Ichnology  Ontario, Southern  Ordovician  Paleontology  Trace fossils  
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  36. Traces of the Ordovican [sic] system on the Atlantic coast and organic remains of Little River Group, no. IV
    By: Matthew, G. F.
    Publication info: Ottawa :J. Durie,1895.
    Contributed by: Canadiana.org (archive.org)
    Subjects: Insects, Fossil  Ordovician  Paleontology  
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  37. The trilobites Bathyurus and Eomonorachus from the Middle Ordovician of Oklahoma and their biofacies significance /
    By: Ludvigsen, Rolf. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,1978.
    Contributed by: ROM - University of Toronto (archive.org)
    Subjects: Oklahoma  Ordovician  Paleontology  Trilobites  
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  38. The type species of the Ordovician trilobite genus Isotelus I. gigas Dekay, 1824 /
    By: Rudkin, David M., - Tripp, Ronald P. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,1988.
    Contributed by: Royal Ontario Museum (archive.org)
    Subjects: New York (State)  Ontario  Ordovician  Paleontology  Trilobites  
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  39. Upper Cambrian and Lower Ordovician trilobite biostratigraphy of the Rabbitkettle Formation, Western District of Mackenzie /
    By: Ludvigsen, Rolf. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,1982.
    Contributed by: ROM - University of Toronto (archive.org)
    Subjects: Cambrian  Mackenzie District  Northwest Territories  Ordovician  Paleontology  Trilobites  
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  40. Upper Cambrian to Lower Ordovician conodont biostratigraphy and biofacies, Rabbitkettle Formation, District of Mackenzie /
    By: Landing, Ed. - Ludvigsen, Rolf. - Von Bitter, Peter H. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,1980.
    Contributed by: ROM - University of Toronto (archive.org)
    Subjects: Cambrian  Conodonts  Mackenzie District  Northwest Territories  Ordovician  Paleontology  
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  41. The Upper Ordovician fauna of Frobisher bay, Baffin Land, by Sharat Kumar Roy.
    By: Roy, Sharat Kumar,
    Publication info: Chicago :Field Museum of Natural History,1941
    Contributed by: University of Illinois Urbana Champaign
    Subjects: (1927-1928)  Baffin Island  Frobisher Bay  Frobisher Bay (Bay)  Nunavut  Ordovician  Ordovicien  Paleontologie  Paleontology  Rawson-MacMillan Sub-Arctic Expedition  Rawson-MacMillan sub-Arctic expedition, 1927-1928  Territoires du Nord-Ouest  
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  42. The upper Ordovician rocks of Kentucky and their bryozoa. By John M. Nickles. 1905.
    By: Nickles, John M.
    Publication info: Louisville [Ky.] :Printed by the Geo. G. Fetter company,1905.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Bryozoa, Fossil  Kentucky  Ordovician  Paleontology  
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