Can jellyfish be fossilised?

Fossils include molds, casts, defecation material, stomach stones, bones, footprints, trails, and burrows. Fossils can be preserved in sedimentary rock, tar, pits, and amber. Researchers believe that one of the rationales that the Cambrian jellyfish became fossilized is that there were no terrestrial animals at the time to eat their remains.

The fossils would also allow microbes on the beach shore to grow and form mats to stabilize the beach sand. For jellyfish to fossilize in the sand, there would have to be catastrophic conditions, causing rapid fossilization. Since jellyfish have no hard parts, fossils are rare. There are not many jellyfish fossils because they are made of soft tissues and they do not have bones.