University of Chicago paleontologist Paul Sereno arranges a fossil of a PancakeCroc which sits between a flesh model of a PancakeCroc, left and a flesh model and fossil of a BoarCroc in his Chicago lab . PancakeCroc, a 20-footer, got its name not because it favored flapjacks but because of a bizarre, 3-foot-long, pancake-flat head and snout. Its formal name is Laganosucus thaumastos, Sereno said it patiently held jaws open underwater for hours for an unwary fish or frog to swim in for lunch. Like modern crocs, PancakeCroc waddled on short legs extending from its side and never straying from its river bank home.
Tribune photo by Nancy Stone
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