Bibliography of North American Geology


Book Description

1919/28 cumulation includes material previously issued in the 1919/20-1935/36 issues and also material not published separately for 1927/28. 1929/39 cumulation includes material previously issued in the 1929/30-1935/36 issues and also material for 1937-39 not published separately.




Professional Paper


Book Description







Receptaculitids


Book Description

Receptaculitids are extinct high-level fossils that provide a window into the history of life. After the discovery and analysis of a deposit of phosphatized receptaculitids on the Baltic Sea island of Öland, the authors conclude that receptaculitids possess an attribute not found in any other group of organisms, living or fossil.




Triassic Stratigraphy of Western Central Canada


Book Description

The area to be considered lies east from the Rocky Mountain Front to the eastern erosion edge of the Triassic strata in the subsurface. It therefore includes both surface and subsurface sections. All Triassic strata lying between latitude 53° and 59° 30' (and consequently between the Whitehorse Creek and Liard River type sections) are considered.