Using Fossils To Locate The Ordovician Equator In Laurentia
USA's ancient hurricane belt and the US-Canada equator
http://phys.org/news/2012-11-usa-ancient-hurricane-belt-us-canada.html
USA's ancient hurricane belt and the US-Canada
equator, Durham University
https://www.dur.ac.uk/news/newsitem/?itemno=15902
Jisuo, J., D.A.T. Harper, L. R. M. Cocks, and P. J. A.
McCausland, C. M. O. Rasmussen, and P. M. Sheehan,
2013, Precisely locating the Ordovician equator in
Laurentia. Geology. vol. 41, no. 2, pp. 107-110.
Abstract - http://geology.gsapubs.org/content/41/2/107.abstract
PDF file - ftp://rock.geosociety.org/pub/reposit/2013/2013026.pdf
Yours,
Paul H.