Maps Of Holocene Human Expansion In North American

[Oxytropidoceras]

Data analysis yields striking maps of human expansion in

North American Holocene by Christopher Packham

http://phys.org/news/2015-09-analysis-yields-human-expansion-north.html

The paper is:

Chaput, M. A., B. Kriesche, M. Betts, A. Martindale,

R. Kulike, V. Schmidt, and K. Gajewski, 2015,

Spatiotemporal distribution of Holocene populations

in North America."PNAS 2015 ; published ahead

of print September 8, 2015, DOI: 10.1073/pnas.1505657112

http://www.pnas.org/content/early/2015/09/02/1505657112

More information at:

The Canadian Archaeological Radiocarbon Database

(CARD): Archaeological 14C Dates in North America

and Their Paleoenvironmental Context by K Gajewski,

S Munoz, M Peros, A Viau, R Morlan, M Betts

https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/3470

Yours,

Paul H.

[ZiggieCie]

The third article downloads as a PDF, and I will read it later. It looks interesting, and I like this stufff.