Now freely available: Cullison (1944), a difficult-to-find Early Ordovician monograph

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Just a note that James Cullison's 1944 monograph on the rocks and fauna of the upper Lower Ordovician of Missouri and Arkansas is now freely available for download or perusal at https://archive.org/details/paper-cullison-1944-the-stratigraphy-of-some-lower-ordovician-formations-of-the 

 

This publication has always been devilishly tough to get a hold of. A nice systematic paleontology section deals with the many gastropods and other mollusks as well as the less diverse brachiopods, trilobites, and sponges. The monograph covers the following formations as currently accepted in Missouri:

 • Smithville Formation
 • Powell Formation
 • Cotter Formation
 • Jefferson City Formation

 

Enjoy and share as you like.

 

Full citation:

J. S. Cullison, 1944: "The Stratigraphy Of Some Lower Ordovician Formations Of The Ozark Uplift." The University of Missouri School of Mines and Metallurgy Bulletin Technical Series, Vol. 15, No. 2, 112 pp + 35 pl.