What’s so rare about a jellyfish fossil?
In Central Wisconsin, near the town of Mosinee, there is a rock quarry home to a very important fossil find, the jellyfish. This is no ordinary quarry; it contains thousands of fossilized jellyfish. Why are they there? In the oceans, jellyfish are squishy blobs of clear gel. How could squishy jellyfish fossilize? Generally, hard substances become fossils, not soft substances. Also, if you have ever been to the beach, you have probably noticed seagulls eating things washed up on shore, maybe even a jellyfish. When animals wash up on shore, there are predators around to eat them, they simply do not lie on the shore waiting to be fossilized.
Furthermore, when a jellyfish gets washed up on shore, it pumps its bell, trying to get back to the water. This will leave behind little rings in the sand. In this rock quarry, no evidence of fossilized rings around these jellyfish exist. A jellyfish is 96% water and would dry out and shrink if exposed to air. There is no fossil evidence that these jellyfish have shrunk. Moreover, these jellyfish were not found in just one layer but were found buried in seven layers of the quarry over a thickness of 12 feet.
So, what does all this evidence tell us? These jellyfish had to have been covered and fossilized quickly and not just once but repeatedly to form in the many layers. What event in history would have fast, deep sedimentary coverage, depleting all oxygen creating the perfect condition for forming fossils? The Global Flood of Noah!
(Source: Inspired Evidence – Von Vett & Malone)