| Reference Type | Journal (article/letter/editorial) |
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| Title | Middle and Upper Ordovician graptolites from the St. Lawrence Lowlands, Quebec, Canada |
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| Journal | Canadian Journal of Earth Sciences |
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| Authors | Walters, Martin | Author |
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| Year | 1977 (May 1) | Volume | 14 |
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| Issue | 5 |
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| Publisher | Canadian Science Publishing |
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| DOI | doi:10.1139/e77-088Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 475352 | Long-form Identifier | mindat:1:5:475352:4 |
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| GUID | 0 |
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| Full Reference | Walters, Martin (1977) Middle and Upper Ordovician graptolites from the St. Lawrence Lowlands, Quebec, Canada. Canadian Journal of Earth Sciences, 14 (5) 932-952 doi:10.1139/e77-088 |
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| Plain Text | Walters, Martin (1977) Middle and Upper Ordovician graptolites from the St. Lawrence Lowlands, Quebec, Canada. Canadian Journal of Earth Sciences, 14 (5) 932-952 doi:10.1139/e77-088 |
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| In | (1977, May) Canadian Journal of Earth Sciences Vol. 14 (5) Canadian Science Publishing |
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| Abstract/Notes | Eleven species of Middle and Upper Ordovician graptolites are described and illustrated, a lectotype is selected for Orthograptus reudemanni (Gurley) and the occurrence of eighteen other species is recorded. The specimens were collected from sections along the Bécancour, Nicolet, Nicolet Sud-Ouest, and St. François Rivers of the St. Lawrence Lowlands, Quebec. The graptolite zonal scheme proposed by Riva for eastern North America is reviewed and adopted in the present study. |
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