Alligator snapping turtles are the biggest freshwater turtle in North America, sporting jagged, pointy shells, and a hooked beak. But these prehistoric-looking creatures haven't been seen in Kansas ...
Foreword / J. Whitfield Gibbons -- Systematics, taxonomy, and geographic distribution of the snapping turtles, family Chelydridae / Carl H. Ernst -- History of fossil Chelydridae / J. Howard Hutchison ...
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