Spechts Ferry (Middle Ordovician) bryozoan fauna from Illinois, Wisconsin, and Iowa
Perry, Thomas G.
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https://hdl.handle.net/2142/43953
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Title Spechts Ferry (Middle Ordovician) bryozoan fauna from Illinois, Wisconsin, and Iowa Author(s) Perry, Thomas G. Issue Date 1962 Keyword(s) Bryozoa, Fossil Paleontology Geographic Coverage Middle West Jo Daviess County, Illinois Clayton County, Iowa Dubuque County, Iowa Grant County, Wisconsin Publisher Urbana, IL : Illinois State Geological Survey Series/Report Name or Number Circular no. 326 Type of Resource text Language eng Permalink http://hdl.handle.net/2142/43953 Has Version(s) http://hdl.handle.net/10111/UIUCOCA:spechtsferrymidd326perr http://www.archive.org/details/spechtsferrymidd326perr Copyright and License Information Public domain. Illinois state government document. Copyright 1962 Board of Trustees University of Illinois.
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