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Lower Cambrian archaeocyatha from the Yukon Territory

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dc.contributor.author Kawase, Yoshio
dc.date.accessioned 2012-01-31T19:11:50Z
dc.date.available 2012-01-31T19:11:50Z
dc.date.copyright 1956
dc.date.issued 2012-01-31
dc.identifier.uri http://hdl.handle.net/2429/40405
dc.description.abstract Archaeocyatha from the Lower Cambrian of Wolf Lake and Quiet Lake areas in the Yukon Territory are described and illustrated. The fossils occur in carbonate rocks and are well preserved. Much of the necessary structural detail of the fossils is clearly observed in thin-sections and on polished surfaces of the specimens. The collection contains twenty-three species, twelve of which are new species. The new species described are: Ajacicyathus yukonensis, Coscinocyathus multiporus. Coseinocyathus cassiariensis, Coscinocyathus inequivallug, Coscinocyathus serratus, Coscinocyathus veronicus, Coscinocyathus tubicornus, Carinacyathus perforatus, Pyenoidocyathus solidus, Loculicyathus elliptieus, Metacoscinus poolensis, and Claruscyathus ketzaensis. The genera Carinacyathus and Loculicyathus are reported for the first time in North America. The Yukon fauna is dominated by Coscinocyathidae and Pycnoidocyathidae, showing close relationship to faunae in the Cordilleran region of British Columbia. It also shows relationship to Siberian and Australian faunae. This fauna is very different from the archaeocyathid assemblages in Nevada and California, where the dominant forms are Ethmophyllidae and Ajacicyathiclae. Arehaeocyatha have been instrumental in determining the age of rocks underlying a large area of the Yukon Territory. en_US
dc.language.iso eng en_US
dc.publisher University of British Columbia en
dc.relation.ispartofseries UBC Retrospective Theses Digitization Project [http://www.library.ubc.ca/archives/retro_theses/] en
dc.subject Paleontology -- Yukon Territory en_US
dc.subject Geology, Stratigraphic -- Cambrian en_US
dc.title Lower Cambrian archaeocyatha from the Yukon Territory en_US
dc.type Electronic Thesis or Dissertation en
dc.degree.name Master of Applied Science - MASc en_US
dc.degree.discipline Geological Sciences en_US
dc.degree.grantor University of British Columbia en
dc.degree.campus UBCV en_US
dc.description.scholarlevel Graduate en


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