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News From the Field

Snail Fossils Suggest Semiarid Eastern Canary Islands Were Wetter 50,000 Years Ago


October 27, 2009

fossil land snail shells Isotopic measurements, performed on fossilized land snail shells found in ancient soils on the subtropical eastern Canary Islands, resulted in oxygen isotope ratios that suggest the Spanish archipelago off the northwest coast of Africa has become progressively drier over the past 50,000 years. These findings are from research by Yurena Yanes and Crayton Yapp of Southern Methodist University in Dallas, Texas. Full Story

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Southern Methodist University

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