A View Of The Great Beatty Bioherm

Looking at a distance to the great Beatty Mudmound, which is the pale gray, pod-shaped body along the skyline at upper right. The flanks of the mudmound produce prolific quantifities of silicified (replaced by silicon dioxide) invertebrate fossils some 480 million years old; the fossils are preserved in the early Middle Ordovician Antelope Valley Limestone.

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