11-1/2" Utah Septarian Bookends Agate Bookends Some Megalodon teeth have been

Some Megalodon teeth have been measured over 7" in length

when it needed to either defend itself from large carnivorous predators

amphibians and all other life in those wetlands (bogs) were suffocated by the ash and immediately there began a permineralization / petrification process

From the Latin word "citrus / citron tree"

Streaks of warm browns and reds are indicative of iron oxides intermixing with quartz and other minerals during a specimen's fossilization process

11-1/2" Utah Septarian Bookends Agate Bookends Some Megalodon teeth have beenThese strange and handsome Geodes are from the Henry Mountains of Utah. Originally formed in an ancient sea floor some 50 70 million years ago, sediment collected around sea life as they decomposed, forming a concretion. Calcium carbonate from the shells of these creatures began to take a new form over time, creating calcite crystals and bands of aragonite. As the oceans receded, these mud balls hardened, shrinking and cracking in the sun. The gold