Contributions to Canadian paleontology. Contents: Middle Ordovician (Chazyan) stratigraphy, and Bryozoan and Conodont Faunas in the Hawkesbury region, eastern Ontario. by T.E. Bolton [and others}. A new Lower Silurian Callocystitid Cystoid from the Lake Timiskaming region, northern Ontario. by C.R.C. Paul [and others], Middle Devonian goniatites from the Dunedin and Besa River Formations of northeastern British Columbia. by U.F.G Wissner [and others]. Lower Carboniferous miospore assemblages from the Hart River Formation, northern Yukon Territory. by J. Utting. A high latitude Upper Triassic flora from the Heiberg Formation, Sverdrup Basin, Arctic Archipelago. by S.R. Ash [and others] Lower Bajocian (Middle Jurassic) ammonites and bivalves from the Whitesail Lake area, west-central British Columbia. by R.L. Hall [and others]

by Canada. Geological Survey of Canada.

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