Just because some fossils were buried rapidly doesn’t mean they all were, or that they were buried at the same time.
Then we have Lagerstätten fossils, exquisitely preserved because they were buried very quietly and delicately in slowly deposited sedimentation. They’re found all over the world and at ages from a few million years to Precambrian.
Konservat-Lagerstätten, on the other hand, are deposits known for the extraordinary preservation of fossilized life forms, especially where the soft parts are preserved. Such exquisite preservation require specific environmental conditions, such as anoxic (little or no oxygen) mud and sediment that inhibits bacterial decomposition processes for enough time for mineral exchange, precipitation, and other chemical processes to form casts and films of delicate softer body parts.
List of Lagerstatten fossil sites.
Sal won’t touch them. No YEC anywhere will. 