Lenz, A. C., Xu, Chen (1985) Middle to Upper Ordovician graptolite biostratigraphy of Peel River and other areas of the northern Canadian Cordillera. Canadian Journal of Earth Sciences, 22 (2) 227-239 doi:10.1139/e85-020
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Middle to Upper Ordovician graptolite biostratigraphy of Peel River and other areas of the northern Canadian Cordillera | ||
| Journal | Canadian Journal of Earth Sciences | ||
| Authors | Lenz, A. C. | Author | |
| Xu, Chen | Author | ||
| Year | 1985 (February 1) | Volume | 22 |
| Issue | 2 | ||
| Publisher | Canadian Science Publishing | ||
| DOI | doi:10.1139/e85-020Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 478552 | Long-form Identifier | mindat:1:5:478552:5 |
| GUID | 0 | ||
| Full Reference | Lenz, A. C., Xu, Chen (1985) Middle to Upper Ordovician graptolite biostratigraphy of Peel River and other areas of the northern Canadian Cordillera. Canadian Journal of Earth Sciences, 22 (2) 227-239 doi:10.1139/e85-020 | ||
| Plain Text | Lenz, A. C., Xu, Chen (1985) Middle to Upper Ordovician graptolite biostratigraphy of Peel River and other areas of the northern Canadian Cordillera. Canadian Journal of Earth Sciences, 22 (2) 227-239 doi:10.1139/e85-020 | ||
| In | (1985, February) Canadian Journal of Earth Sciences Vol. 22 (2) Canadian Science Publishing | ||
| Abstract/Notes | Middle to Upper Ordovician (Darriwilian to Bolindian) graptolite zones of the northern Canadian Cordillera comprise the following: Glyptograptus euglyphus Zone of late Darriwilian (Llandeilo) age, Nemagraptus gracilis Zone of early Gisbornian (late Llandeilo and earliest Caradoc) age, Climacograptus bicornis and Dicranograptus clingani? zones of early to mid-Gisbornian (early to mid-Caradoc) age, Orthograptus quadrimucronatus Zone of Eastonian (late Caradoc) age, and Dicellograptus ornatus zone of Bolindian (Ashgill) age.A prominent biostratigraphic break equivalent to the spiniferus to hians kirki zones (Eastonian) is shown to exist between the clingani? Zone and the overlying quadrimucronatus Zone.Thirty eight common and (or) important species are illustrated, of which one new species, Orthograptus expansus n. sp., is described and figured. | ||
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