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Sketch of a coprolite—fossilized animal excrement

Sketch of a coprolite—fossilized animal excrement.jpg Sketch of a gastrolith—the gizzard stone of an ancient reptileThumbnailsSkeleton of Tyrannosaurus in comparison with human skeletonSketch of a gastrolith—the gizzard stone of an ancient reptileThumbnailsSkeleton of Tyrannosaurus in comparison with human skeletonSketch of a gastrolith—the gizzard stone of an ancient reptileThumbnailsSkeleton of Tyrannosaurus in comparison with human skeleton

Coprolites are fossil dung or body waste. These objects can provide valuable information as to the food habits or anatomical structure of the animal that made them.