Talk:Cladoxylopsida

The oldest tree fossils have been found in northeastern North America (New York), c.385Ma. About the same time, proto-tetrapods were evolving towards life on land, e.g. Eusthenepteron fossils, from the same region (Quebec), and from the same epoch, c.385Ma. Ipso facto, the first forests evidently evolved in archaic North America, whose collision with Baltica c.400Ma, and with Gondwana c.350Ma, allowed plants to grow their way across the assembling supercontinent of Pangea. And, following those first forests, the first amphibians and Reptilomorphs also evolved, in archaic Euramerica (North America + Baltica), and dispersed from there, presumably following the expanding primitive forests:

http://s10.postimage.org/bv1m3h0p5/Reptile_expansion.png

The location, of the oldest tree fossils, near the North American ancestral cradle of tetrapods, seems significant. Cp.

http://scientistatwork.blogs.nytimes.com/2012/04/12/on-the-origin-of-therapsids/

66.235.38.214 (talk) 10:37, 22 October 2012 (UTC)[reply]