Ancient Turtle Migrated from Asia to America Over a Tropical Arctic

Fossil Find Suggests CO2 a Possible Culprit in Warm, Freshwater Arctic

2 February 2009 Geology - - link will require subscription to Geology

News Articles related to the Geology publication:

University of Rochester press release
Turtles Island-Hopped Their Way Across a Warm Arctic - Science News
Tropical turtle found in arctic Canada - USA Today
Tropical turtle’s Arctic travels - February 02, 2009 Nature.com
Turtle fossil shows how 'super-greenhouse effect' created tropical Arctic - The Telegraph
Fossil find shedding light on Arctic's past - The Windsor Star
Turtle fossil find testimony to warm Arctic - National Post, Canada
Tropical Turtle Fossil Discovered in the High Arctic - Wired.com
Turtles Escaped Global Warming Via a Freshwater Highway in the Ocean - Discover News
Tropical Turtle Fossil Found in Arctic - LiveScience