Not a chcolate egg but a dinosaur egg recently unearthed in Argentina’s Rio Negro region – see https://dailygalaxy.com/2025/11/perfectly-intact-fossilized-dinosaur-egg/ … paleontologists in Argentina have unearthed a dinosaur egg that has survived intact for around 70 million years. That is the promotion for an egg they are hoping may contain genetic material – or even an embryo.
Patagonia is a spectacular location, we are told, rich in deposits in which are fonnd dinosaur fossils. Their eggs are rare – much easier to be damaged during the fossilisation process. It must have involved a rapid burial in soft sediments. This idea is reinforced by the presence of nest material in the deposit. The egg was buried with its nest – a strange case of mainstream fossilisation processes. This must have been instant. It could not have survived over a period of time – even if the embryo inside failed to hatch. It implies a catastrophic event – and one associated with the end of the Cretaceous. We have a known agent – the asteroid strike on Chicxulub, and various other locations around the world, as it broke up in the atmosphere. Unlike the numerous broken bones of the so called inland Sea of North America, the fossils in Patagonia could hardly have been tossed and turned in a grand tsunami wave. They were buried where they existed.